TOMB OF KING TUTANKHAMEN
Tutankhamen's tombwas discovered in 1922byHoward carter
In the 1920s
It was discovered by Hubble.
Alexander Fleming in london
There were several crime families or mobs in the 1920s, also called the Mafia. For example, Al Capone was active from the early 1920s until the 1930s.
The planetarium was not discovered, but rather invented by German engineer and optician named Carl Zeiss. He developed the first modern planetarium projector in the early 1920s.
He was not discovered until after his death.
Discovered in 1886, but not isolated until the 1950's.
Discovered by Balard in 1826, but not prepared in quantity until 1860.
It was not discovered, it was assumed until proved otherwise.
Multiple vitamins were discovered. Some of the more imperative vitamins are vitamins B, C, and E.
McIntosh Stereopticon slides were produced from the the 1920s until the 1980s.