Milestones

Ten years ago: Former National Security Adviser John Poindexter testified at the Iran-Contra hearings that he had never told President Reagan about using Iranian arms sales money for the Contras in order to protect the president from possible political embarrassment.

Five years ago: Arkansas Gov. Bill Clinton claimed the Democratic presidential nomination at the party’s convention in New York City.

One year ago: Republican presidential candidate Bob Dole picked New York congresswoman Susan Molinari to deliver the keynote address at the upcoming GOP convention. MSNBC, a 24-hour all-news network, made its debut on cable and the Internet.