in 1878
Albert Einstein did not invent mathematics.
1887
he invented it when he invented braille.
Invent something that will help improve the world
I think sometime in the 1600's
Thomas invented the phonograph in the year of 1878 and took him 30 hours with a little help from his Friend john kruesi.Edison is credited with the invention of the phonographin 1877.thomas Edison invented the phonograph in the year 1877. he demonstrated the phonograph on Dec.7th 1877 at the office of SCIENTIFIC AMERICAN.
The phonograph was invented by Thomas Edison in 1877.
Thomas Edison made the phongraph in 1877.
The phonograph was invented in 1878. Thomas Edison invented it.
The phonograph was invented in 1877 by Thomas Alva Edison.
The phonograph was invented in 1877 by Thomas Edison.
it depends on what year but i believe he had one when he was about 40
1856
he didn't
In 1891, of course!
in 1880
1879