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The stethoscope, a doctor's indispensable - 1816
The first entry on our list of the greatest French inventions has saved innumerable lives.
This lifesaver was the humble stethoscope that was devised by the French physician René Laennec in 1816.
It would immediately become one of the most important non-invasive medical instruments in the doctors' kit. It works by using a small disc-shaped resonator to amplify the internal sounds of the patient.
The Etch-a-Sketch is French! - 1955-56
A French electrical technician, inventor, toymaker, and kite designer, André Cassagnes, designed one of the most popular toys of all time in the later 1950s.
These toys are effectively plotters. Etch-a-sketches work by scraping off aluminum powder on the inside surface of the main glass screen.
The knobs are used to control internal styluses that scrap off the powder coating, leaving a visible dark line.
As the result of Mexican American war, the treaty of Guadalupe Hidalgo, a peace treaty was signed on 2 February 1848 at Villa De Guadalupe Hidalgo. This treaty added 525,000 square miles to United States territory and establishes the Rio Grande river as the US-Mexican border. However, Guadalupe Hidalgo is the oldest treaty between an America and Mexico and which is still in force.
Colonial America also had regional differences among culture or historical reason for establishment as a colony. The Southern Colonies were established as economic ventures and were seeking natural resources to provide material wealth to the mother country and themselves. In contrast, the early New England colonists were primarily religious reformers and separatists. They were seeking a new way of life to glorify God and for the greater good of their spiritual life. The Middle colonies welcomed people from various and diverse lifestyles. The social-political structure included all three varieties: villages, cities, and small farms.
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The Democrats nominated two candidates
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The Mongol invasions of Japan (元寇 Genkō), which took place in 1274 and 1281, were major military efforts undertaken by Kublai Khan to conquer the Japanese archipelago after the submission of Goryeo (Korea) to vassaldom. Ultimately a failure, the invasion attempts are of macro-historical importance because they set a limit on Mongol expansion and rank as nation-defining events in the history of Japan.
