Not a single major league game is scheduled to be played. With the exception of All-Star breaks and labor shortages, it is the first time this has happened during the regular season in 25 years, since April 30, 1973.

June 29, 1998 This Day In Baseball

On June 29, 1998 Not a single major league game is scheduled to be played. With the exception of All-Star breaks and labor shortages, it is the first time this has happened during the regular season in 25 years, since April 30, 1973.

Source
Baseball Reference June 29

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