On March 12, 1999, the Czech Republic, Hungary, and Poland became the first former members of the Warsaw Pact join the North Atlantic Treaty Organization (NATO).

Read the NATO accession treaties for the Czech Republic, the Republic of Hungary, and the Republic of Poland.

On March 12, 1993, Janet Reno was sworn in an as the first female US Attorney General.

Learn more about Janet Reno from the US Department of Justice Attorney General's website as it stood on November 9, 2000.