Search Result For mankind

The day the telephone was patented – level 2

07-03-1876

Alexander Graham Bell started his experiments in 1873. He was trying...



The day the telephone was patented – level 3

07-03-1876

Since 1873, Alexander Graham Bell was trying to find a way...



The day the trial of the Rosenbergs started – level 3

06-03-1951

The atomic bomb that the Americans developed didn’t only cause an...