Catholic : Easter Monday only observed by the Catholic community

Secular holiday : Commemorates the First Rom World Congress in London in 1971. Marks the beginning of the first International Roma organization and the introduction of the name Rom (instead of Gypsy), and of the Romani anthem and flag, observed by the Roma community only

Culture : Celebrated by the Roma community only

Muslim, Sufi : Ends the ninth month in the Islamic calendar. There were 30 days of strict fasting from sunup to sundown in honor of the first revelation to the Prophet Mohammed.

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cards/flowers : Deliverance of the Jewish people from Egypt. The Seder service on the first two evenings recounts the story of the Exodus

Secular holiday : Chicago, Saturday May 1st, 1886: 350,000 workers go on strike to call for an 8-hour working day. Industries are paralyzed nationwide. On Monday, as demonstrations go on, the police open fire. On Tuesday, Chicago is again on strike. Following a bomb launched against them, the police shoot again. 12 dead, of which 7 policemen. 8 anarchists will be condemned and executed. In 1889, the Socialist International Movement met in Paris and declared this day international workers' day . The Soviets will follow suit, just as the Nazis. In France, under the Vichy regime (1940-1944), the celebration is renamed Labour Day .

Orthodox : Orthodox Good Friday only observed by the Orthodox community

Culture : not a paid holiday

Orthodox : Vtor den Veligden

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Secular holiday : National Day of the Vlachs

Orthodox : Commemorates the creation of the Slavic Glagolitic and Cyrillic alphabets by the brothers Saints Cyril and Methodius. The celebration also commemorates the introduction of literacy and the preaching of the gospels in the Slavonic language by the brothers.

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Muslim, Sufi : Eid Al-Adha also written Id al'Adha (or Eid Al-Adha) is the Feast of the Sacrifice , the second main celebration of Islam. It takes place on the tenth day of the twelfth -- last month of the Islamic calendar and celebrates Abraham's (also written Ibrahim) willingness to sacrifice his son in obedience to God. Muslims make their annual pilgrimage, or the Hajj , to Makkah (Mecca) in Saudi Arabia. The Prophet Muhammad called Eid Al-Adha the best day of the year, since it is the last and biggest day of the annual pilgrimage. observed by the Muslim community

Banks only : All Souls' Day only observed by the Orthodox community

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Secular holiday : Commemorates the Ilinden-Preobrazhenie Uprising (Ilinden Uprising) of August 1903 which was an organized revolt against the Ottoman Empire. Wikipedia

Orthodox : Golema Bogorodica (Dormition of the Holy Mother of God) only observed by the Orthodox community

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Secular holiday : Paid holiday when falling on Saturday or Sunday

Secular holiday : Paid holiday when falling on Saturday or Sunday

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cards/flowers : Jewish New Year

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Jewish : Yom Kippur

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Special Events : At 1:00 a.m. local times