Widely regarded as the most famous and influential boxer of all time, Ali is being honored for the first time with a ...

The Muhammad Ali stamp will go on sale beginning Jan. 15, and be sold on a sheet of 20 for $15.60.

Muhammad Ali stamps will go on sale beginning Jan. 15, and be sold on a sheet of 20 for $15.60. Find out where to get them.

Ali's widow Lonnie Ali spoke at a ceremony honoring the late boxing champion.

Artist Antonio Alcala gets the stamp of approval for his new USPS postage stamp.

Muhammad Ali's refusal to sign his Vietnam-era military draft card upended the boxing champ's life and added a powerful voice to the anti-war movement. Now that piece of history is coming up for sale.

Muhammad Ali-Stamp This image released by the United States Postal Service shows a commemorative Muhammad Ali stamp featuring a 1974 Associated Press photo of Ali. (United States Postal Service via AP ...

Muhammad Ali’s refusal to sign his Vietnam-era military draft card upended the boxing champ’s life and added a powerful voice to the anti-war movement. Now that piece of history is coming up for sale.