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There are four principal (primary, or major) lunar phases: the new moon, first quarter, full moon, and last quarter (also known as third or final quarter), when the Moon's ecliptic longitude is at an angle to the Sun (as viewed from the center of the Earth) of 0°, 90°, 180°, and 270° respectively.
The following is a list of notable month-long observances, recurrent months that are used by various governments, groups and organizations to raise awareness of an issue, commemorate a group or event, or celebrate something.
Women’s History Month began as a local week-long celebration in Santa Rosa, California in 1978, according to the online National Women’s History Museum. The Education Task Force of the Sonoma ...
The first commemorative month was the US Black History Month, which first was commemorated at Kent State University from January 2 to February 28, 1970, [2] and recognized by President Gerald Ford in 1976, during the celebration of the United States Bicentennial. [3] The observance had begun at a smaller scale in 1926 as "Negro History Week".
2. The day became Women's History Week in 1978. An education task force in Sonoma County, California kicked off Women's History Week in 1978 on March 8, International Women's Day, according to the ...
Interesting facts about Black historical figures who have made such an impact. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...
A lunisolar calendar was found at Warren Field in Scotland and has been dated to c. 8000 BC, during the Mesolithic period. [2] [3] Some scholars argue for lunar calendars still earlier—Rappenglück in the marks on a c. 17,000 year-old cave painting at Lascaux and Marshack in the marks on a c. 27,000 year-old bone baton—but their findings remain controversial.
The last quarter of the year is the fourth quarter or Q4. This quarter takes place in October, November and December. Q4 is the time when most companies have to hustle.