Abner Singleday and Abner Tripleday, cousins of Abner Doubleday.
me
A person
in 1920
It was invented, not discovered.
Patrick tamer bowie invented led signs in 1979
Robert Yeaman in 1345
Abner Doubleday invented baseball.
alexander joy cartwright invented baseball in 1845
Abner Doubleday invented baseball as a sport
no it was invented in 1744
And was Created By William Phelps EnoSources-http://www.ehow.com/facts_5003094_who-invented-stop-sign.html
The ball was invented in Egypt and South America.