The first decade of the 20th century brought great change to America. We saw the assassination of President McKinley, the first flights by the Wright Brothers and the introduction of Henry Ford's Model T. Improvements to Marconi's spark transmitter meant that ships at sea could communication with stations on the shore. Einstein developed his special theory of relatively, which would lead to great scientific discovery as the century wore on. On the homefront, America went to the movies as great numbers of theaters opened to present the growing number of silent feature films produced during this time. The introduction of home phonograph machines brought music into our living rooms. Eastman Kodak developed the Brownie camera, which brought photography within the reach of most Americans.