That portion of a policy's premium that applies to the expired portion of the policy. Although insurance premiums are often paid in advance, insurers typically earn the premium at an even rate throughout the policy term. More Risk Finance and Captives Information from IRMI.
Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on January 31, 1958. A quick response to the Soviet Union's launch of Sputnik 1, Explorer 1's success marked the beginning of the U.S. Space Age.
On 12 April 1961, the Vostok 3KA-3 (Vostok 1) spacecraft with Gagarin aboard was launched from Baikonur Cosmodrome. Gagarin thus became both the first human to travel into space, and the first to orbit the earth. His call sign was Kedr (Russian: ÐºÐµÐ´Ñ, Siberian pine or Cedar).