Reagan's presidency is signified by the virtual collapse of the Soviet Union. Although the official dismemberment did not come until 1991, with Gorbachev¹s policies of glasnost and perestroika, it was clear that the communistic regime of the Soviet Union had ended for good.
Chronology of Ronald Reagan
1983 - French scientists dicover virus linked to aids
1986 - Space shuttle Challenger explodes
1987 - U.S. stock market withstood largest single-day plunge