What occurred during the détente era?

Limitation of arms

Explanation: The Détente era was a period which saw the easing of Cold War tensions between the United States and the Soviet Union from 1967 to 1979. The era was a time of increased trade and cooperation with the Soviet Union. Nixon traveled to Moscow, where he met with the Russian Premier and discussed matters such as arms limitation, prevention of nuclear war, and increased trade between the United States and the Soviet Union.

Apart from reduced tensions between the two nations, the period made great progress in regulating Soviet-American nuclear arms competition and paved the way for the signing and implementation of the Strategic Arms Limitation Talks (SALT) treaties.

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:

they both built pyramids.