Adam - year 0
its a element on earth , and georguis agricola discovered it in 1530...
Uhm, the first living being on earth, the sun is much older than the earth.
it was discovered by ace
.... No?
Francium was discovered by Marguerite Perey in 1939.
The oven was discovered by O. Ven, for whom it is named, who also discovered the Ven diagram.
Graham
Joseph Black discovered CO2 hope this helps!!! x
In 1502 by the Portugese.
by alex k. in 1762
boyle
Operant conditioning was discovered by psychologist B.F. Skinner in the 1930s.