Hank Aaron hitting a home run. This led Hank Aaron to a major league contract, signed on the final day of spring training, and a Braves uniform with the number five. On April 13, Aaron made his major league debut and was hitless in five at-bats against the Cincinnati Reds' left-hander Joe Nuxhall. In the same game, Eddie Mathews hit two home runs, the first of a record 863 home runs the pair would hit as teammates. On April 15, Aaron collected his first major league hit, a double off Cardinals' pitcher Vic Raschi. Aaron hit his first major league home run
Hank Aaron began referring to him publicly as "Hank" in order to suggest more accessibility. The nickname quickly gained currency, but "Henry" continued to be cited frequently in the media, both sometimes appearing in the same article, and Aaron would answer to either one. During his rookie year, his other well-known nicknames, "Hammerin' Hank" (by teammates) and "Bad Henry" (by opposing pitchers) are reported to have arisen. Aaron hit .314 with 27 home runs and 106 RBI, in 1955. He was named to the NL All-Star roster for the first time; it was the first of a record 21 All-Star selections and