Washington Nats rookie outfielder Bryce Harper hit his first home run on Monday at the age of 19 years and 211 days. He’s the youngest player in Expos/Nationals history to hit a home run, breaking the record held by Gary Carter since Sept. 28, 1974, when he was 20 years, 173 days old. And he’s the youngest to hit a home run for a Washington team since Harmon Killebrew did it on Sept. 25, 1955 at 19 years, 88 days old. Pretty good company I would say.