Milestones

Ten years ago: Violence continued in South Korea, where riot police broke up protests in the cities of Seoul and Pusan for a second day.

Five years ago: Russian President Boris Yeltsin returned home from his North America tour.

One year ago: European leaders agreed to gradually lift a global ban on British beef exports imposed nearly three months earlier following a scare over “mad cow” disease. Pentagon officials said American troops destroyed an Iraqi ammunition depot in March 1991 that may have contained chemical weapons.