the first mechanical calculator was invented in 1642 by Pascal, a great French scientist who was only 19 years old.
the telephone was invented by American a.g. bell in 1876.
in p>1886, karl benz, a German engineer, obtained the German patent for his tricycle. This is recognized as the first modern car in the world. For the above reasons, people generally regard 1886 as the first year of automobile.
TV was first invented by British engineer John Logie Baird in 1925.
The computer was invented by john von neumann in the United States in 1946.