In baseball, a home run (abbreviated HR, also homer, dinger, dong, bomb, blast, goner , shot, or four-bagger) is scored when the ball is hit in such a way that the batter is able to circle the bases and reach home safely in one play without any errors being committed by the defensive team in the process.
https://en.wikipedia.org/wiki/Home_run
Twice in MLB history have two brothers hit back-to-back home runs. On April 23, 2013, brothers Melvin Upton, Jr. (formerly B.J. Upton) and Justin Upton hit back-to-back home runs. The first time was on September 15, 1938, when Lloyd Waner and Paul Waner performed the feat.
https://en.wikipedia.org/wiki/Home_run
First Home Run The first home run hit in MLB history was by Ezra Sutton of the Cleveland Forest Citys on May 8, 1871 against the Chicago White Stockings in the National Association. Sutton hit a second home run in the game to be the player to hit the first and second home runs in MLB history. Ross Barnes of the Chicago White Stockings, later the Cubs, hit the first home run in the National League on May 2, 1876. Later that day Charlie Jones of the Cincinati Red Stockings also hit one.
http://www.answers.com/Q/Who_hit_the_first_home_run_in_Major_League_Baseball_history
There is nothing, it turns out, that Bartolo Colon can't do. The 42-year-old Colon launched the first home run of his 19-year career on Saturday, taking Padres pitcher James Shields deep for a two-run shot in the second inning of a 6-3 win at Petco Park.
http://m.mlb.com/news/article/176830856/bartolo-colon-hits-first-home-run-of-career/
Full Game Coverage. The 42-year-old Colon launched the first home run of his 19-year career on Saturday, taking Padres pitcher James Shields deep for a two-run shot in the second inning of a 6-3 win at Petco Park. It was Colon's first hit of the season, and just the third extra-base hit of his professional career.
http://m.mlb.com/news/article/176830856/bartolo-colon-hits-first-home-run-of-career/
A lead-off home run is a home run hit by the first batter of a team, the leadoff hitter of the first inning of the game. In MLB, Rickey Henderson holds the record with 81 lead-off home runs. Craig Biggio holds the National League record with 53, second overall to Henderson.
https://en.wikipedia.org/wiki/Home_run
Below is a list of all known players to have hit four or more home runs in a single professional game, first published by SABR founding member Bob McConnell in The Minor League Research Journal, Vol. 2 in 1997, updated in Going for the Fences: The Minor League Home Run Record Book (2009), and now maintained online.
http://sabr.org/research/four-homers-one-game
June 3, 1932: Lou Gehrig. American League, at Shibe Park, Philadelphia, PA. New York Yankees 20, Philadelphia A's 13. Yankees first baseman Henry Louis Gehrig hit 4 home runs in his first 4 at-bats, but his greatest day was overshadowed by the announcement of John McGraw's retirement.
http://sabr.org/research/four-homers-one-game
In the early days of the game, when the ball was less lively and the ballparks generally had very large outfields, most home runs were of the inside-the-park variety. The first home run ever hit in the National League was by Ross Barnes of the Chicago White Stockings (now known as the Chicago Cubs), in 1876.
https://en.wikipedia.org/wiki/Home_run
Players to hit four home runs in a Major League Baseball game are highlighted in red. 1  John C. Crooks of the Omahogs went 5-5 with 4 home runs and a single. 2  Pawtucket first baseman Daniel F. Cronin had 4 home runs.  Robert L. Lowe of the Beaneaters had 4 home runs.
http://sabr.org/research/four-homers-one-game
who hit the first homerun in mlb
Ezra Sutton hit the first homerun in Major League Baseball.