Amazing facts about Cal Ripken Jr.'s games played streak
List of Major League Baseball records considered unbreakable - Wikipedia
September 6, 1995: Cal Ripken surpasses Lou Gehrig's 'unbreakable' record with 2,131st consecutive game – Society for American Baseball Research
Cal Ripken Jr. Academy of Achievement
ON THIS DAY: Cal Ripken ends his consecutive-game streak at 2,632 games
Amazing facts about Cal Ripken Jr.'s games played streak
Consecutive games streaks since Ripken
Top Unbreakable Streaks and Records in MLB History, News, Scores, Highlights, Stats, and Rumors
Cal Ripken's streak 25 years later