- Jan 26 President Bill Clinton says "I want to say one thing to the American people; I did not have sexual relations with that woman, Miss Lewinsky"
- Feb 23 Osama bin Laden publishes a fatwa declaring jihad against all Jews and Crusaders
- Apr 10 The Good Friday/Belfast Agreement for Northern Ireland is signed by the British and Irish governments
- May 23 The Good Friday Agreement is accepted in a referendum in Northern Ireland with 75% voting yes.
- Jun 1 European Central Bank is founded in Brussels to define and execute the European Union's monetary policy
- Aug 15 Omagh bombing in Northern Ireland, the worst terrorist incident of The Troubles, kills 29 people and injures about 220
- Aug 17 Monica Lewinsky scandal: US President Bill Clinton admits in taped testimony he had an "improper physical relationship" with the intern and on the same day admits before the nation he "misled people" about the relationship
- Sep 15 Google.com is registered as a domain name
- Oct 16 Former Chilean dictator General Augusto Pinochet is arrested in London on a Spanish warrant requesting his extradition on murder charges
- Nov 9 Brokerage houses are ordered to pay 1.03 billion USD to NASDAQ investors to compensate for price-fixing - largest civil settlement in US history
- Jul 1 NBA commences a player lockout after no agreement with players about salary issues - lasts 204 days with the season shortened by 50 games
Mercedes-Benz buys Chrysler for $US40 billion and forms DaimlerChrysler in the then largest industrial merger in history
On May 7, 1998
Battle of Hogwarts: fictional battle that ended the Second Wizarding War with the death of Lord Voldemort at Hogwarts School of Witchcraft and Wizardry
On May 2, 1998