How did civilization evolve from the river valley time period to the end of the classical era?

Life has always been tied to water.

Explanation:

Thus, the world's oldest civilizations have just emerged in territories where there was enough water. For example, we can take the Euphrates and Tigris as the rivers on which culture was born. Egyptian civilization was also born thanks to the Nile River.

Water primarily provided man with a source of drinking water, thanks to the water, a man was able to satisfy his hygienic injuries. The water also provided him with the opportunity to irrigate his crops and to water his cattle.Thus, thanks to nature, man developed his original habitats. Over time, man evolved, and "domesticated" water and life, and a more complex irrigation system was designed.

in griswold v. connecticut (1965), the supreme court ruled that a state's ban on the use of contraceptives violated the right to marital privacy.

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation: