The ans is - The dog star
Up to the first half of 2013 who won the most men's major golf championships, also known as majors (Masters Tournament, U.S. Open, The Open Championship (British Open) and US PGA Championship)?
The Battle of Antietam (also known as the Battle of Sharpsburg), fought on 17 September 1862, the first major battle in the American Civil War to take place on Northern soil has what other distinction in US history?