Bellow you will find a list of jewish holidays for the secular year 66. You can use the links bellow to find the Jewish Holidays for any given year
1/13/66 Wed, 1st of Sh'vat, 3826
1/13/66 Wed, Rosh Chodesh Sh'vat
1/27/66 Wed, 15th of Sh'vat, 3826
1/27/66 Wed, Tu B'Shvat
2/6/66 Sat, 25th of Sh'vat, 3826
2/6/66 Sat, Shabbat Shekalim
2/11/66 Thu, 30th of Sh'vat, 3826
2/11/66 Thu, Rosh Chodesh Adar
2/12/66 Fri, 1st of Adar, 3826
2/12/66 Fri, Rosh Chodesh Adar
2/20/66 Sat, 9th of Adar, 3826
2/20/66 Sat, Shabbat Zachor
2/24/66 Wed, 13th of Adar, 3826
2/24/66 Wed, Ta'anit Esther
2/24/66 Wed, Erev Purim
2/25/66 Thu, 14th of Adar, 3826
2/25/66 Thu, Purim
2/26/66 Fri, 15th of Adar, 3826
2/26/66 Fri, Shushan Purim
3/6/66 Sat, 23rd of Adar, 3826
3/6/66 Sat, Shabbat Parah
3/13/66 Sat, 1st of Nisan, 3826
3/13/66 Sat, Rosh Chodesh Nisan
3/13/66 Sat, Shabbat HaChodesh
3/20/66 Sat, 8th of Nisan, 3826
3/20/66 Sat, Shabbat HaGadol
3/26/66 Fri, 14th of Nisan, 3826
3/26/66 Fri, Ta'anit Bechorot
3/26/66 Fri, Erev Pesach
3/27/66 Sat, 15th of Nisan, 3826
3/27/66 Sat, Pesach I
3/28/66 Sun, 16th of Nisan, 3826
3/28/66 Sun, Pesach II
3/29/66 Mon, 17th of Nisan, 3826
3/29/66 Mon, Pesach III (CH''M)
3/30/66 Tue, 18th of Nisan, 3826
3/30/66 Tue, Pesach IV (CH''M)
3/31/66 Wed, 19th of Nisan, 3826
3/31/66 Wed, Pesach V (CH''M)
4/1/66 Thu, 20th of Nisan, 3826
4/1/66 Thu, Pesach VI (CH''M)
4/2/66 Fri, 21st of Nisan, 3826
4/2/66 Fri, Pesach VII
4/3/66 Sat, 22nd of Nisan, 3826
4/3/66 Sat, Pesach VIII
4/11/66 Sun, 30th of Nisan, 3826
4/11/66 Sun, Rosh Chodesh Iyyar
4/12/66 Mon, 1st of Iyyar, 3826
4/12/66 Mon, Rosh Chodesh Iyyar
4/25/66 Sun, 14th of Iyyar, 3826
4/25/66 Sun, Pesach Sheni
4/29/66 Thu, 18th of Iyyar, 3826
4/29/66 Thu, Lag B'Omer
5/11/66 Tue, 1st of Sivan, 3826
5/11/66 Tue, Rosh Chodesh Sivan
5/15/66 Sat, 5th of Sivan, 3826
5/15/66 Sat, Erev Shavuot
5/16/66 Sun, 6th of Sivan, 3826
5/16/66 Sun, Shavuot I
5/17/66 Mon, 7th of Sivan, 3826
5/17/66 Mon, Shavuot II
6/9/66 Wed, 30th of Sivan, 3826
6/9/66 Wed, Rosh Chodesh Tamuz
6/10/66 Thu, 1st of Tamuz, 3826
6/10/66 Thu, Rosh Chodesh Tamuz
6/27/66 Sun, 18th of Tamuz, 3826
6/27/66 Sun, Tzom Tammuz
7/9/66 Fri, 1st of Av, 3826
7/9/66 Fri, Rosh Chodesh Av
7/17/66 Sat, 9th of Av, 3826
7/17/66 Sat, Shabbat Chazon
7/17/66 Sat, Erev Tish'a B'Av
7/18/66 Sun, 10th of Av, 3826
7/18/66 Sun, Tish'a B'Av
7/24/66 Sat, 16th of Av, 3826
7/24/66 Sat, Shabbat Nachamu
8/7/66 Sat, 30th of Av, 3826
8/7/66 Sat, Rosh Chodesh Elul
8/8/66 Sun, 1st of Elul, 3826
8/8/66 Sun, Rosh Chodesh Elul
9/5/66 Sun, 29th of Elul, 3826
9/5/66 Sun, Erev Rosh Hashana
9/6/66 Mon, 1st of Tishrei, 3827
9/6/66 Mon, Rosh Hashana 3827
9/7/66 Tue, 2nd of Tishrei, 3827
9/7/66 Tue, Rosh Hashana II
9/8/66 Wed, 3rd of Tishrei, 3827
9/8/66 Wed, Tzom Gedaliah
9/11/66 Sat, 6th of Tishrei, 3827
9/11/66 Sat, Shabbat Shuva
9/14/66 Tue, 9th of Tishrei, 3827
9/14/66 Tue, Erev Yom Kippur
9/15/66 Wed, 10th of Tishrei, 3827
9/15/66 Wed, Yom Kippur
9/19/66 Sun, 14th of Tishrei, 3827
9/19/66 Sun, Erev Sukkot
9/20/66 Mon, 15th of Tishrei, 3827
9/20/66 Mon, Sukkot I
9/21/66 Tue, 16th of Tishrei, 3827
9/21/66 Tue, Sukkot II
9/22/66 Wed, 17th of Tishrei, 3827
9/22/66 Wed, Sukkot III (CH''M)
9/23/66 Thu, 18th of Tishrei, 3827
9/23/66 Thu, Sukkot IV (CH''M)
9/24/66 Fri, 19th of Tishrei, 3827
9/24/66 Fri, Sukkot V (CH''M)
9/25/66 Sat, 20th of Tishrei, 3827
9/25/66 Sat, Sukkot VI (CH''M)
9/26/66 Sun, 21st of Tishrei, 3827
9/26/66 Sun, Sukkot VII (Hoshana Raba)
9/27/66 Mon, 22nd of Tishrei, 3827
9/27/66 Mon, Shmini Atzeret
9/28/66 Tue, 23rd of Tishrei, 3827
9/28/66 Tue, Simchat Torah
10/5/66 Tue, 30th of Tishrei, 3827
10/5/66 Tue, Rosh Chodesh Cheshvan
10/6/66 Wed, 1st of Cheshvan, 3827
10/6/66 Wed, Rosh Chodesh Cheshvan
11/4/66 Thu, 30th of Cheshvan, 3827
11/4/66 Thu, Rosh Chodesh Kislev
11/5/66 Fri, 1st of Kislev, 3827
11/5/66 Fri, Rosh Chodesh Kislev
11/28/66 Sun, 24th of Kislev, 3827
11/28/66 Sun, Chanukah: 1 Candle
11/29/66 Mon, 25th of Kislev, 3827
11/29/66 Mon, Chanukah: 2 Candles
11/30/66 Tue, 26th of Kislev, 3827
11/30/66 Tue, Chanukah: 3 Candles
12/1/66 Wed, 27th of Kislev, 3827
12/1/66 Wed, Chanukah: 4 Candles
12/2/66 Thu, 28th of Kislev, 3827
12/2/66 Thu, Chanukah: 5 Candles
12/3/66 Fri, 29th of Kislev, 3827
12/3/66 Fri, Chanukah: 6 Candles
12/4/66 Sat, 30th of Kislev, 3827
12/4/66 Sat, Rosh Chodesh Tevet
12/4/66 Sat, Chanukah: 7 Candles
12/5/66 Sun, 1st of Tevet, 3827
12/5/66 Sun, Rosh Chodesh Tevet
12/5/66 Sun, Chanukah: 8 Candles
12/6/66 Mon, 2nd of Tevet, 3827
12/6/66 Mon, Chanukah: 8th Day
12/14/66 Tue, 10th of Tevet, 3827
12/14/66 Tue, Asara B'Tevet