{"id":832,"date":"2019-12-27T20:57:36","date_gmt":"2019-12-27T20:57:36","guid":{"rendered":"https:\/\/chrystus.pl\/?p=832"},"modified":"2019-12-27T20:57:41","modified_gmt":"2019-12-27T20:57:41","slug":"dlaczego-wielkanoc-jest-swietem-ruchomym","status":"publish","type":"post","link":"https:\/\/chrystus.pl\/en\/dlaczego-wielkanoc-jest-swietem-ruchomym\/","title":{"rendered":"Why is Easter a Moveable Feast? How do I know when it falls?"},"content":{"rendered":"<p><strong>Why <span id=\"urn:enhancement-adea0d2c\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> has different dates?<\/strong><\/p>\n<p><strong>How to calculate <span id=\"urn:enhancement-55e4ae4c\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span>?<\/strong><\/p>\n<p><strong>How do you determine <span id=\"urn:enhancement-49d0468a\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span>?<\/strong><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69f17b1bed59a\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #ffffff;color:#ffffff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #ffffff;color:#ffffff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69f17b1bed59a\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/chrystus.pl\/en\/dlaczego-wielkanoc-jest-swietem-ruchomym\/#Jak_obliczyc_Wielkanoc\" >How do you calculate Easter?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/chrystus.pl\/en\/dlaczego-wielkanoc-jest-swietem-ruchomym\/#OBLICZENIA\" >CALCULATIONS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/chrystus.pl\/en\/dlaczego-wielkanoc-jest-swietem-ruchomym\/#Jak_obliczyc_Wielkanoc_w_danym_roku\" >How do you calculate Easter in a given year?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/chrystus.pl\/en\/dlaczego-wielkanoc-jest-swietem-ruchomym\/#Wyjatki_w_Obliczaniu_dat_Wielkanocy\" >Exceptions to the Calculation of Easter Dates<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Jak_obliczyc_Wielkanoc\"><\/span>How do you calculate Easter?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Wyznaczanie daty wielkanocy. Dlaczego <span id=\"urn:enhancement-67ad85b0\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> is a moveable holiday? Why <span id=\"urn:enhancement-77a864de\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> have different dates? How do you determine <span id=\"urn:enhancement-85bb890f\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span>?<\/p>\n<p>As we already know <span id=\"urn:enhancement-ad73dae1\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> in the calendar is a movable feast. This was established during the first Council of Nicea, which took place in 325. It was then determined that Easter Day would be celebrated on the first <span id=\"urn:enhancement-5a188182\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/niedziela\">Sunday<\/span> after the first spring full moon. The very model for setting this date at the First Council came from the principles of translating a specific date in the religious Hebrew calendar (the date 14 nisan - nisan is the name of the month), into the solar calendar, the Julian calendar. The date 14 nisan represents the beginning of the Passover festival in the Hebrew calendar.<\/p>\n<p>It therefore follows that <span id=\"urn:enhancement-8f1345aa\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> is a movable holiday. Easter Day itself may fall on March 22 at the earliest and April 25 at the latest. Other holidays during this period associated with Easter are also movable. <span id=\"urn:enhancement-eb0ed53a\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/uroczystosc_najswietszego_ciala_i_krwi_panskiej\">Corpus Christi<\/span>, <span id=\"urn:enhancement-e628c89a\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01378\/entity\/zeslanie_ducha_swietego\">Pentecost<\/span> (dok\u0142adnie 50 dni po Wielkanocy), <span id=\"urn:enhancement-a7b1d88e\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/feast_of_the_ascension\">Ascension of the Lord<\/span>, the whole <span id=\"urn:enhancement-57a139f1\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/triduum_paschalne\">Paschal Triduum<\/span> (<span id=\"urn:enhancement-ec70e2ad\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielki_czwartek\">Maundy Thursday<\/span>, <span id=\"urn:enhancement-107287c9\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielki_piatek\">Good Friday<\/span>, <span id=\"urn:enhancement-97e092ed\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielka_sobota\">Holy Saturday<\/span>, <span id=\"urn:enhancement-c8c5fbb\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/niedziela\">Sunday<\/span>), <span id=\"urn:enhancement-d372af4e\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/popielec\">Ash Wednesday<\/span> or finally the period of Lent. Some changes occurred after the introduction of the Gregorian calendar. However, they did not apply to the Orthodox faith, which continues to celebrate holidays in accordance with the Julian calendar.<\/p>\n<p>Throughout the history of the Church, there have been attempts to standardize Easter and set a specific date for it.<\/p>\n<p>Such an attempt was made under Pius X. The draft came close to being adopted, with the majority of bishops agreeing, but eventually, after protests accusing attempts to diminish the importance of the resurrection of the Lord, the changes were rejected.<\/p>\n<p>So far, there have been those who have advocated changing the dates for celebrating Easter. They are talking about choosing always the second Sunday of April, which would give dates from 8 to 14 April or choosing Sundays between the Feast of <span id=\"urn:enhancement-4e0c98e0\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/objawienie_panskie\">Epiphany<\/span> a <span id=\"urn:enhancement-ef0065aa\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/popielec\">Ash Wednesday<\/span>which would also coincide with the dates 8-14 (except in leap years, when it would be April 7-13). It is perfectly acceptable for the Church to change the date.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"OBLICZENIA\"><\/span>CALCULATIONS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Jak_obliczyc_Wielkanoc_w_danym_roku\"><\/span>How do you calculate Easter in a given year?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When setting the date of Easter, it is important to keep in mind the basic rule that states <span id=\"urn:enhancement-768c9498\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> always falls on the first <span id=\"urn:enhancement-1770e351\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/niedziela\">Sunday<\/span> after the first spring full moon occurring after March 21. Thus it falls between March 22 and April 25. The method of calculating the specific day of Easter was given by the German mathematician C.F. Gauss. The table given below is used in this case:<\/p>\n<table style=\"height: 922px;\" width=\"513\">\n<tbody>\n<tr>\n<td rowspan=\"2\">\n<pre><strong>Years<\/strong><\/pre>\n<\/td>\n<td rowspan=\"2\">\n<pre><strong>A<\/strong><\/pre>\n<\/td>\n<td rowspan=\"2\">\n<pre><strong>B<\/strong><\/pre>\n<\/td>\n<td colspan=\"2\">\n<pre><strong>Exceptions (year)<\/strong><\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre><strong>I kind of<\/strong><\/pre>\n<\/td>\n<td>\n<pre><strong>II kind<\/strong><\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>33-1582<\/pre>\n<\/td>\n<td>\n<pre>15<\/pre>\n<\/td>\n<td>\n<pre>6<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>1583-1699<\/pre>\n<\/td>\n<td>\n<pre>22<\/pre>\n<\/td>\n<td>\n<pre>2<\/pre>\n<\/td>\n<td>\n<pre>1609<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>1700-1799<\/pre>\n<\/td>\n<td>\n<pre>23<\/pre>\n<\/td>\n<td>\n<pre>3<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>1800-1899<\/pre>\n<\/td>\n<td>\n<pre>23<\/pre>\n<\/td>\n<td>\n<pre>4<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>1900-2099<\/pre>\n<\/td>\n<td>\n<pre>24<\/pre>\n<\/td>\n<td>\n<pre>5<\/pre>\n<\/td>\n<td>\n<pre>1981, 2076<\/pre>\n<\/td>\n<td>\n<pre>1954, 2049<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2100-2199<\/pre>\n<\/td>\n<td>\n<pre>24<\/pre>\n<\/td>\n<td>\n<pre>6<\/pre>\n<\/td>\n<td>\n<pre>2133<\/pre>\n<\/td>\n<td>\n<pre>2106<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2200-2299<\/pre>\n<\/td>\n<td>\n<pre>25<\/pre>\n<\/td>\n<td>\n<pre>0<\/pre>\n<\/td>\n<td>\n<pre>2201, 2296<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2300-2399<\/pre>\n<\/td>\n<td>\n<pre>26<\/pre>\n<\/td>\n<td>\n<pre>1<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2400-2499<\/pre>\n<\/td>\n<td>\n<pre>25<\/pre>\n<\/td>\n<td>\n<pre>1<\/pre>\n<\/td>\n<td>\n<pre>2448<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2500-2599<\/pre>\n<\/td>\n<td>\n<pre>26<\/pre>\n<\/td>\n<td>\n<pre>2<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2600-2699<\/pre>\n<\/td>\n<td>\n<pre>27<\/pre>\n<\/td>\n<td>\n<pre>3<\/pre>\n<\/td>\n<td>\n<pre>2668<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2700-2899<\/pre>\n<\/td>\n<td>\n<pre>27<\/pre>\n<\/td>\n<td>\n<pre>4<\/pre>\n<\/td>\n<td>\n<pre>2725, 2820<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<pre>2900-2999<\/pre>\n<\/td>\n<td>\n<pre>28<\/pre>\n<\/td>\n<td>\n<pre>5<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<td>\n<pre>no<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>We use 6 steps for the calculation:<\/strong><\/p>\n<ol>\n<li>divide the number of the year by 19 and then find the remainder <em>a<\/em><\/li>\n<li>divide the number of the year by 4 and then find the remainder <em>b<\/em><\/li>\n<li>divide the number of the year by 7 and then find the remainder <em>c<\/em><\/li>\n<li>the remainder determined as <em>a,<\/em> multiply by 19, add the number A to the product, divide the sum by 30 and determine the remainder <em>d<\/em><\/li>\n<li>Sum of products of 2<em>b <\/em>+ 4<em>c<\/em> +6<em>d <\/em>+ B divide by 7 and determine the remainder <em>e<\/em><\/li>\n<li>Sum of the residuals <em>e + d <\/em>add to date March 22<\/li>\n<\/ol>\n<p><strong>This is how we get the date of Easter.<\/strong><\/p>\n<p>If the date is above March 31, it must be converted to the corresponding day in April. If the sum (d+e)&gt;10 then we are sure that it is April. In the opposite case it is March.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Wyjatki_w_Obliczaniu_dat_Wielkanocy\"><\/span>Exceptions to the Calculation of Easter Dates<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In some cases there are also exceptions (first type exception, second type exception)<\/p>\n<p>Exceptions of the first kind occur when <em>d=29, <\/em>a <em>e=6 <\/em>and according to the calculations <span id=\"urn:enhancement-86fc98a\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> would fall on 26 April. In that case, it is celebrated a week earlier, on April 19 (e.g. 1609 and 1981).<\/p>\n<p>Exceptions of the second kind occur when <em>d=28 <\/em>a <em>e=6, <\/em>and dividing 11<em>A + <\/em>11 by 30 gives a remainder less than 19. In that case <span id=\"urn:enhancement-5213e1df\" class=\"textannotation disambiguated wl-other\" itemid=\"http:\/\/data.wordlift.io\/wl01857\/entity\/wielkanoc\">Easter<\/span> falls on April 5, and is celebrated on March 29 (1807 and 1954).<\/p>\n<p>All exceptions that occur up to the year 2999 are listed in the table above.<\/p>\n<p><strong>EXAMPLE:<\/strong><\/p>\n<p>Let's calculate the date of Easter for the year 2008;<\/p>\n<ul>\n<li>Step 1: 2008:19=105, remainder a=13<\/li>\n<li>Step 2: 2008:4=502, remainder b=0<\/li>\n<li>Step 3: 2008:7=286, remainder c=6<\/li>\n<li>Step 4: (19+a+A):30 or (19+13+24):30=271:30=9, remainder d=1<\/li>\n<li>Step 5: (2xb + 4xc + 6xd + B):7 i.e. (2\u00d70 + 4\u00d76 + 6\u00d71 + 5):7=5, remainder 0<\/li>\n<li>Step 6: d+e+22 or 1+0+22=23<\/li>\n<\/ul>\n<p>We got the final result equal to 23. This means that the Easter holiday date for 2008 is March 23, 2008. (for the Gregorian calendar).<\/p>\n<p>In the case of the Julian calendar, the calculations look identical but for A we substitute A=15 and for B we substitute B=6).<\/p>\n<p>Istnieje jeszcze jedna metoda obliczania daty Wielkanocy. Jest to metoda Meeusa\/Jonesa\/Butchera. Jest ona o tyle prostsza, \u017ce nie wymaga podawania liczb A i B, oraz nie ma w tym wypadku \u017cadnych wyj\u0105tk\u00f3w. Metoda ta przebiega nast\u0119puj\u0105co:<\/p>\n<ol>\n<li>First we divide the number of the year by 19 and determine the remainder <em>a<\/em>.<\/li>\n<li>Divide the number of years by 100, round the result down (cut off the fractional part) and we get the number <em>b<\/em>.<\/li>\n<li>We divide the number of years by 100 and get the remainder <em>c<\/em>.<\/li>\n<li>We calculate: <em>b<\/em> : 4 and the result is rounded down and we get the number <em>d<\/em>.<\/li>\n<li>We calculate: <em>b<\/em> : 4 and determine the remainder <em>e<\/em>.<\/li>\n<li>We calculate: (<em>b<\/em> + 8) : 25 and the result is rounded down and we get the number <em>f<\/em>.<\/li>\n<li>We calculate: (<em>b<\/em> - <em>f<\/em> + 1) : 3 and the result is rounded down and we get the number <em>g<\/em>.<\/li>\n<li>We calculate: (19 \u00d7 <em>a<\/em> + <em>b<\/em> - <em>d<\/em> - <em>g<\/em> + 15) : 30 and determine the remainder <em>h<\/em>.<\/li>\n<li>We calculate: <em>c<\/em> : 4 and the result is rounded down and we get the number <em>i<\/em>.<\/li>\n<li>We calculate: <em>c<\/em> : 4 and determine the remainder <em>k<\/em>.<\/li>\n<li>We calculate: (32 + 2 \u00d7 <em>e<\/em> + 2 \u00d7 <em>i<\/em> - <em>h<\/em> - <em>k<\/em>) : 7 and we get the remainder <em>l<\/em>.<\/li>\n<li>We perform an action (<em>a<\/em> + 11 \u00d7 <em>h<\/em> + 22 \u00d7 <em>l<\/em>) : 451 and the result is rounded down and we get the number <em>m<\/em>.<\/li>\n<li>We perform the action: (<em>h<\/em> + <em>l<\/em> - 7 \u00d7 <em>m<\/em> + 114) : 31 and we get the remainder <em>p<\/em>.<\/li>\n<li>The result is x = <em>p<\/em> + 1 (it is Easter day)<\/li>\n<li>Month = Rounding down division (<em>h<\/em> + <em>l<\/em> - 7 \u00d7 <em>m<\/em> + 114) by 31.<\/li>\n<\/ol>\n<p>For simplicity, there is a conversion between the Gregorian and Julian calendars. For the years 1900-2100, we simply add the number 13 to the dates on the Julian calendar and get the date for the Gregorian calendar.<\/p>","protected":false},"excerpt":{"rendered":"<p>Dlaczego Wielkanoc ma rozne daty? Jak obliczy\u0107 Wielkanoc? Jak wyznacza sie Wielkanoc? Jak obliczy\u0107 Wielkanoc? Wyznaczanie daty wielkanocy. Dlaczego Wielkanoc jest \u015bwi\u0119tem ruchomym? Dlaczego Wielkanoc ma r\u00f3\u017cne daty? Jak wyznaczy\u0107 Wielkanoc? Jak ju\u017c wiemy Wielkanoc w kalendarzu jest \u015bwi\u0119tem ruchomym. Zosta\u0142o to ustalone w trakcie trwania pierwszego soboru nicejskiego, kt\u00f3ry odby\u0142 si\u0119 w 325 roku. &hellip;<\/p>","protected":false},"author":1,"featured_media":833,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"class_list":["post-832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wielkanoc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dlaczego Wielkanoc jest \u015awi\u0119tem Ruchomym? Jak obliczy\u0107?<\/title>\n<meta name=\"description\" content=\"Dlaczego Wielkanoc ma rozne daty? Jak obliczy\u0107 Wielkanoc? Jak wyznacza sie Wielkanoc? Jak obliczy\u0107 Wielkanoc? Wyznaczanie daty wielkanocy. 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