Aug. 17, 1920: Indians shortstop Ray Chapman dies after being hit in the head by a pitch from Yankee Carl Mays, prompting Major League Baseball to ban the spitball, require umpires to replace dirty balls.

1950s/60s: Players use plastic inserts for protection.

1971: MLB makes batting helmets mandatory.

1983: MLB makes helmets with at least one earflap mandatory

July 11, 2006: Rawlings introduces the CoolFlo helmet with vents

July 22, 2007: Rockies minor league first base coach Mike Coolbaugh is killed by a batted ball to the head

Nov. 8, 2007: MLB mandates all base coaches wear batting helmets

August, 2009: Rawlings introduces the S100 helmet, built to withstand pitches of up to 100 mph

Aug. 31, 2009: MLB announces that it will mandate minor league players wear the S100 in 2010.

About the Author

Keep Reading

Atlanta Braves designated hitter Marcell Ozuna, who drove in three runs in Wednesday's 9-4 win over the Washington Nationals, checks his swing during a game against the Houston Astros on Friday, Sept. 12, 2025, in Atlanta, at Truist Park. (Jason Allen/AJC)

Credit: Atlanta Journal-Constitution

Featured

The city of Atlanta opened Azalea Fresh Market downtown to help residents find affordable groceries. (Natrice Miller/AJC)