Inventions When was the toothbrush invented? 1790 1742 1765 1770 1790 1742 1765 1770 ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1739 1743 1760 1785 1739 1743 1760 1785 ANSWER DOWNLOAD EXAMIANS APP
Inventions The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? Robert Oppenheimer Vannevar Bush James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush James B. Conant Leslie R. Groves ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Visa Diner's Club MasterCharge Discover Visa Diner's Club MasterCharge Discover ANSWER DOWNLOAD EXAMIANS APP
Inventions Where was the yo-yo invented? France England United States Philippines France England United States Philippines ANSWER DOWNLOAD EXAMIANS APP
Inventions What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931? Muumuu Capri pants Aloha shirt String bikini Muumuu Capri pants Aloha shirt String bikini ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS