Year 1870 U.S. Calendar
January 1870
1st: New Year's Day
3rd: New Year's Day Holiday
4th: World Braille Day
February 1870
1st: World Interfaith Harmony Week; Black History Month
2nd: Groundhog Day; World Wetlands Day
4th: International Day of Human Fraternity; Rosa Parks Day in California and Missouri
March 1870
1st: Town Meeting Day (Vermont); World Seagrass Day; Zero Discrimination Day; Shrove Tuesday; Mardi Gras (Louisiana)
2nd: Texas Independence Day (Texas); Ash Wednesday
3rd: World Wildlife Day
April 1870
2nd: Pascua Florida Day (Florida); World Autism Awareness Day
4th: International Day for Mine Awareness and Assistance in Mine Action
5th: International Day of Conscience
May 1870
2nd: World Tuna Day
3rd: World Press Freedom Day
5th: World Portuguese Language Day; African World Heritage Day
June 1870
1st: Global Day of Parents
3rd: Jefferson Davis' Birthday (Florida); World Bicycle Day
4th: International Day of Innocent Children Victims of Aggression; Shavout
July 1870
3rd: Governor's Holiday (Colorado); International Day of Cooperatives
4th: Independence Day, July 4th
7th: Kiswahili Language Day
August 1870
1st: World Breastfeeding Week
7th: American Family Day (Arizona)
8th: Victory Day (Rhode Island)
September 1870
5th: Labor Day; International Day of Charity
7th: International Day of Police Cooperation; International Day of Clean Air for Blue Skies
8th: International Literacy Day
October 1870
1st: International Day of Older Persons
2nd: World Habitat Day; International Day of Non-Violence
3rd: Cabrini Day (Colorado)
November 1870
2nd: International Day to End Impunity for Crimes against Journalists
3rd: International Day for Biosphere Reserves; International day against violence and bullying at school including cyberbullying
5th: World Day of Romani Language; World Tsunami Awareness Day
December 1870
1st: World AIDS Day; Rosa Parks Day in Ohio and Oregon
2nd: World Futures Day; International Day for the Abolition of Slavery
3rd: International Day of Persons with Disabilities