An amendment to the constitution must be ratified by
a. three-quarters of the states
b. two-thirds of the states
c, a two-thirds vote of congress
d. a three-quarters vote of congress

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018