March 21, 1900 (Wednesday)
- George C. Hale, Chief of the Kansas City Fire Department and inventor of the Hale tower and the automatic harness, demonstrated the first heat sensitive automatic fire alarm – "When the temperature goes above the maximum fixed for the building, an electric circuit is opened that puts into operation a phonograph which talks into a telephone, telling Fire Headquarters that there is a fire at whatever address the alarm is located."
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Famous quotes containing the word march:
“Our Germany’s dead. However hard this may be for some of us older people, it’s a blessing for our children. Our children grew up against new backgrounds, new horizons. And they are free. Free to grow up as children. Free to run and to laugh without being forced into uniforms. Without being forced to march up and down streets, singing battle songs.”
—Emeric Pressburger (1902–1988)