Yugoslav Federation broken up (Jan. 15).Bush and Yeltsin proclaim formal end to cold war(Feb. 1). U.S. lifts trade sanctions against China (Feb. 21). U.S. recognizes three former Yugoslav republics (April 7). Gen. Noriega, former Panama leader, convicted in U.S. court (April 9). Four police officers acquitted in Los Angeles beating of Rodney King; rioting erupts in South-Central Los Angeles (April 29et seq.). Caspar W. Weinberger indicted in Iran-Contra affair (June 16). Last Western hostages freed in Lebanon(June 17). Supreme Court reaffirms right to abortion (June 29). Democrats nominate Bill Clinton and Al Gore(July 1). Gen. Noriega sentenced to 40 years on drug charges (July 10). Court clears Exxon Valdez skipper (July 10). Israeli Parliament approves Yitzhak Rabin's coalition government, dominated by Labor Party (July 13). Police officers acquitted in April on criminal charges in Rodney King beating are indicted on federal civil rights charges (Aug. 5). North American trade compact announced (Aug. 12). Republicans renominate Bush and Quayle(Aug. 20). UN expels Serbian-dominated Yugoslavia (Sept. 22). Senate ratifies second Strategic Arms Limitation Treaty(Oct. 1). Top Japanese leader, Shin Kanemaru, resigns in scandal (Oct. 14). Bill Clinton elected president, Al Gore vice president; Democrats keep control of Congress (Nov. 3). Russian Parliament approves START treaty (Nov. 4). U.S. forces leave Philippines, ending nearly a century of American military presence (Nov. 24).Czechoslovak Parliament approves separation into two nations (Nov. 25). UN approves U.S.-led force to guard food for Somalia(Dec. 3).Prince and Princess of Wales agree to separate (Dec. 9). Bush pardons former Reagan administration officials involved in Iran-Contra affair (Dec. 24).