Modern seismograph in 1880.
Linotype in 1885.
Steam-turbine in 1888.
Roentgen or X-ray in 1895.
Wireless telegraphy in 1895.
Motion pictures in 1895.
Monotype in 1896.
Radium in 1902.
Aeroplane, first successful flying, Dec. 17, 1903.
It will be noticed that none of these inventions antedate 1798. Go back a little over a century and we find the world about where it was in the days of the patriarchs. For thousands of years there seemed to be scarcely any advancement or improvement in knowledge. But suddenly with the opening of the nineteenth century, the world awoke from its long sleep, and a new era dawned,—the time of the end, when knowledge was to be increased.