This Day in History: 1867-06-19

The inaugural Belmont Stakes was run at Jerome Park in the Bronx and was won by a filly, Ruthless, who defeated colts to earn $1,850 for her victory. Ruthless was one in a group of fillies known as the “Barbarous Battalion,” daughters of the mare Barbarity, owned by Francis Morris of New York. The other “battalion” members—all full sisters—were Remorseless, Relentless, Regardless and Merciless.