VIDEO: All of MLB's first basemen recite Lou Gehrig's luckiest man speech

Friday marks the 75th anniversary of New York Yankees legend Lou Gehrig saying a heartfelt goodbye to more than 61,000 fans at Yankee Stadium.

First basemen from around the league (and Derek Jeter) are featured in a special video to commemorate the 'luckiest man' speech Gehrig gave to the crowd on July 4, 1939.

[Courtesy MLB.com]

The club organized Lou Gehrig Appreciation Day on the holiday in 1939, about a month after Gehrig was diagnosed with amyotrophic lateral sclerosis (ALS). Nerve cells in the brain and spinal cord slowly deteriorate, robbing those with the disease of their strength and motor skills.

Gehrig's condition forced him to depart the game prematurely, at the age of 36, a season after he hit .340 with 202 hits and 37 homers.