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The cotton gin was patented in 1794 by Eli Whitney while Washington was President.
It's believed that the idea came around during Eisenhower's presidency, but it was executed (and failed) under President Kennedy.
cake mix
FDR was president of the US when electronic digital computers were invented.
(Although it is commonly called President's Day to honor both Washington and Lincoln's birthdays.) It was not invented by any president. It is a federal holiday.
It was invented because some sentences were too long, so the comma is to rest for a short time.
The cotton gin-Eli Whitney- around 1793.
FDR changed the role of the president through his style of government, establishing himself as a policy maker as well as chief executive. He introduced the Executive Reorganisation Bill. He also established a personal relationship with the people through his fireside chats.
third US president, Thomas Jefferson, invented revolving chair
eli whitney invented the cotton gin (a machine that seperated cotton from its seeds) in 1793, which was during george washington's presidency
President Obama invented the Obama phone.
Thomas Edison invented the light bulb in 1879. Rutherford B. Hayes was President at that time.