A) segregate blacks and whites.
He served in office from Jan. 20th, 1961 to Nov. 22nd, 1963.
Historically, they burned the people infected with it(to death if not already dead)
The first, known as the Calendar Round, was based on two overlapping annual cycles: a 260-day sacred year and a 365-day secular year. Under this system, each day was assigned four pieces of identifying information: a day number and day name in the sacred calendar and a day number and month name in the secular calendar. Every 52 years counted as a single interval, or Calendar Round. After each interval the calendar would reset itself like a clock.
The Maya strongly believed in the influence of the cosmos on daily life. Consequently, Mayan knowledge and understanding of celestial bodies was advanced for their time: For example, they knew how to predict solar eclipses. They also used astrological cycles to aid in planting and harvesting and developed two calendars that are as precise as those we use today.
achievements- astronomy, agriculture, engineering and communications
Between 1941 and 1943, underground resistance<span>movements formed in about 100 Jewish groups. ... On April 19, 1943, the </span>Warsaw ghetto uprising began<span>after German troops and police entered the </span>ghetto<span> to deport its surviving inhabitants. Seven hundred and fifty fighters fought the heavily armed and well-trained Germans.</span>