17 'unbreakable' baseball records
https://www.mlb.com/news/baseball-records-that-will-never-be-broken/c-281308266

Johnny Vander Meer's back-to-back no-hitters
Joe DiMaggio's 56-game hit streak
Cy Young's record of 749 complete games

Ichiro's 262 hits in 2004
Nolan Ryan's 5,714 strikeouts and 2,795 walks
Rickey Henderson's 1,406 career steals and 130 steals in 1982
Hack Wilson's 191 RBIs in 1930
Chief Wilson's 36 triples in 1912
Barry Bonds' 232 walks in 2004
Babe Ruth's 177 runs scored in 1921
Pete Rose's 15,890 plate appearances and 4,256 hits
Cal Ripken Jr.'s 2,632 straight games played
Hank Aaron's 6,856 career total bases

Ron Hunt's 50 hit by pitches in 1971
Reggie Cleveland's 3 home runs allowed in 1976
Jody Davis' 89 baserunners caught stealing in 1986
Joe Sewell's three-strikeout season in 1932