The try/convert is among the oldest parts of the game of gridiron football and dates to its rugby roots. In its earliest days, scoring a touchdown was not the primary objective but a means of getting a free kick at the goal (which … See more

In American high school and college football, the line of scrimmage is the three-yard line (a small hashmark is denoted on the field of this in the middle … See more

• Comparison of American and Canadian football#Points after touchdown
• Glossary of American football See more

In American high school football (in most states), the play is over once the ball becomes dead or the defense takes possession. In … See more

In 1968, the AFL and NFL eliminated the extra-point kick for interleague preseason games, allowing only one-point scrimmage plays called … See more

• Media related to Conversion (gridiron football) at Wikimedia Commons See more