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| Tu B’Shvat 1641 |  | FRI
25 January 1641 14 Shevat 5401 | SHABBAT
26 January 1641 15 Shevat 5401 | | | |
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| Ta’anit Esther (moved) 1641 |  | | THU
21 February 1641 11 Adar 5401 | | | zomRow |
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| Purim 1641 |  | SHABBAT
23 February 1641 13 Adar 5401 | SUN
24 February 1641 14 Adar 5401 | | | |
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| Shushan Purim 1641 |  | SUN
24 February 1641 14 Adar 5401 | MON
25 February 1641 15 Adar 5401 | | | |
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| Pesach 1641 |  | MON
25 March 1641 14 Nissan 5401 | TUE
2 April 1641 22 Nissan 5401 | | | |
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| Lag BaOmer 1641 |  | SHABBAT
27 April 1641 17 Iyar 5401 | SUN
28 April 1641 18 Iyar 5401 | | | |
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| Shavuot 1641 |  | TUE
14 May 1641 5 Sivan 5401 | THU
16 May 1641 7 Sivan 5401 | | | |
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| Tzom Shiva Asar B'Tammuz 1641 |  | | TUE
25 June 1641 17 Tamuz 5401 | | | zomRow |
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| Tzom Tisha B'av 1641 |  | MON
15 July 1641 8 Av 5401 | TUE
16 July 1641 9 Av 5401 | | | zomRow |
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| Rosh Hashanah 1641 |  | WED
4 September 1641 29 Elul 5401 | FRI
6 September 1641 2 Tishrei 5402 | | | |
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| Tzom Gedaliah (moved) 1641 |  | | SUN
8 September 1641 4 Tishrei 5402 | | | zomRow |
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| Yom Kippur 1641 |  | FRI
13 September 1641 9 Tishrei 5402 | SHABBAT
14 September 1641 10 Tishrei 5402 | | | |
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| Sukkot 1641 |  | WED
18 September 1641 14 Tishrei 5402 | WED
25 September 1641 21 Tishrei 5402 | | | |
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| Shemini Atzeret 1641 |  | WED
25 September 1641 21 Tishrei 5402 | THU
26 September 1641 22 Tishrei 5402 | | | |
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| Simchat Torah 1641 |  | THU
26 September 1641 22 Tishrei 5402 | FRI
27 September 1641 23 Tishrei 5402 | | | |
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| Hanukkah 1641 |  | WED
27 November 1641 24 Kislev 5402 | THU
5 December 1641 2 Tevet 5402 | | | |
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| Tzom Asara B'Tevet 1641 |  | | FRI
13 December 1641 10 Tevet 5402 | | | |
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