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.
Vostok 1. Vostok 1 (Russian: Ð²Ð¾ÑÑÐ¾ÌÐº, East or Orient 1) was the first spaceflight of the Vostok programme and the first manned spaceflight in history. The Vostok 3KA space capsule was launched on April 12, 1961 from Baikonur Cosmodrome with Soviet cosmonaut Yuri Gagarin, making him the first human to cross into outer space.