Jack Johnson - Boys
Jack Johnson - Boys


Jack Johnson Black InventorJACK JOHNSON – Jack Johnson was born on March 31, 1878 in Galveston, Texas.  He became the first African-American world heavyweight boxing champion.  He was imprisoned for dating a white woman and traveling with her across state lines.  While in prison, he developed a tool called the wrench.

Date: April 18, 1922
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Patent No. 1,413,121