The No. 19 isn't a popular one in Philadelphia Eagles history.

Many Eagles have tried out wearing the No. 19, but no player has donned the number as long as Tom Dempsey. Turns out the fan favorite was also the best player to wear the number in Eagles history.

Dempsey booted the longest field goal in NFL history (63 yards) before coming to the Eagles in 1971. The long-distance kicker was the most accurate in the NFL in his first year with the Eagles.

Dempsey converted 12-of-17 field goals in 1971, hitting on 70.6 percent of his kicks. That percentage led the NFL as Dempsey hit three field goals from 50-plus yards, including a 54-yarder in his debut season in Philadelphia.

The NFL wasn't fond of Dempsey and his long field goals, mainly because he wore a special shoe to kick because he was born without toes. The special shoe allowed him to swing his leg and drive the ball.

How did the NFL respond to Dempsey and his seven field goals of 50-plus yards with the Eagles? The league moved the goal posts back in 1974 (they used to be in the front of the end zone) to discourage long field goals.

After Dempsey left the Eagles, the NFL added a rule, indicating that "any shoe that is worn by a player with an artificial limb on his kicking leg must have a kicking surface that conforms to that of a normal kicking shoe." This rule is known as the "Tom Dempsey Rule," instituted in 1977.

Dempsey hit only one 50-plus yard field goal in his career after his final year with the Eagles in 1974, which was a reason why Philadelphia decided to move on from him. He converted 61.1 percent of his field goals with the Eagles (66-for-108) and 93.3 percent of his extra points (84-of-90).

Dempsey still holds the Eagles record with six field goals in a game (18-17 win over the Houston Oilers in 1973), but also missed a 26-yard kick that cost the Eagles a win over the Buffalo Bills that same season.

Finally, Dempsey also butted heads with Eagles owner Leonard Tose. As the team's player representative, the relationship with Tose soured during the NFL Players Strike in 1974.

Once the NFL moved the field goal posts back, the Eagles believed they could get by with a short-yardage kicker more accurate than Dempsey. The Eagles traded Dempsey to the Los Angeles Rams prior to the 1975 season for a 1976 fourth-round draft pick.

Dempsey's seven field goals of 50-plus yards are still second-most in Eagles history, only trailing David Akers's 15.

Honorable mention: Miles Austin. Not much to choose from here, but Austin was the most productive outside of Dempsey.

Austin had 13 catches for 224 yards and a touchdown in 11 games with the Eagles, averaging 17.8 yards per catch in 2015. He was released in favor of Jonathan Krause in December of that season.

All players to wear No. 19 for the Eagles: Roger Kirkman, Orrin Pape, Jim Leonard, Herman Bassman, Fritz Ferko, Tom Burnette, George Somers, Harold Pegg, Dan Berry, Tom Dempsey, Guido Merkens, Troy Smith, Sean Morey, Carl Ford, Michael Gasperson, Brandon Gibson, Mardy Gilyard, Greg Salas, Miles Austin, Paul Turner.

In a new offseason series, Philadelphia Eagles on 247Sports is identifying the best player to ever wear each jersey number in the team's history.