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This type of chair is common in modern offices and is often also referred to as an office chair. Using an English-style Windsor chair which was possibly made and purchased from Francis Trumble or Philadelphia cabinet-maker Benjamin Randolph, Thomas Jefferson invented the swivel chair in 1776. [22]
The year 1776 in science and technology involved some significant events. Astronomy. Lagrange publishes a paper on the stability of planetary orbits. [1] Botany
The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
Several attempts were made using Turtle to affix explosives to the undersides of British warships in New York Harbor in 1776. All failed, and her transport ship was sunk later that year by the British with the submarine aboard. Bushnell claimed eventually to have recovered the machine, but its final fate is unknown.
The history of the United States from 1776 to 1789 was marked by the nation's transition from the American Revolutionary War to the establishment of a novel constitutional order. As a result of the American Revolution , the thirteen British colonies emerged as a newly independent nation, the United States of America , between 1776 and 1789.
John Harrison (3 April [O.S. 24 March] 1693 – 24 March 1776) was an English carpenter and clockmaker who invented the marine chronometer, a long-sought-after device for solving the problem of how to calculate longitude while at sea. Harrison's solution revolutionized navigation and greatly increased the safety of long-distance sea travel.
The Pattern 1776 infantry rifle la cacita was built by William Grice, and was based on German rifles in use by the British Army during its time. About 1,000 of these were built and used by the British Army. The rifle was given to light companies of regiments in the British Army during the American Revolution.
The Delaware Constitution of 1776 is adopted. [9] The Great Fire of New York begins. [10] September 21 – The Great Fire of New York ends. September 22 – American Revolution: Nathan Hale executed in New York City for espionage. September 28 – The Pennsylvania Constitution of 1776 is ratified. [11]