The best answer is:
Samuel Morse and the telegraph
Robert Fulton and the steamboat
<span>Cyrus McCormick (Inventor of the Mechanical Reaper) so its improved because he invented a better one than ones already invented
</span>hope this helped :)
By the Treaty of Paris (signed Dec. 10, 1898), Spain renounced all claim to Cuba, ceded Guam and Puerto Rico to the United States, and transferred sovereignty over the Philippines to the United States for $20 million. The Spanish-American War was an important turning point in the history of both antagonists.May 14, 2010
Unlike the electoral college system for the president, the procedures for nominating presidential candidates are not spelled out in the constitution. the movement is to encourage people who considered themselves as partisans to participate in their party's presidential selection process was short lived, however.
