Goal posts were originally kept on the goal lines, but after they began to interfere with play, they moved back to the end lines in 1927, where they have remained in college football ever since. The National Football League moved the goal posts up to the goal line again in 1933, then back again to the end line in 1974.

When did they move the goalposts?

During the first NFL season in 1920, the goalposts were located at the goal line of the endzone. In 1927 the NCAA would move their goalposts to the back of the end line. With that change being made by the NCAA, the NFL would follow suit and move theirs to the end line as well.

What year did the NFL move the goalposts back 10 yards?

When the NFL was founded in 1920, it used the 'H' design for its uprights and placed them on the goal line. In 1927, the league moved the posts back 10 yards, to the back of the end zone.