Almanac: The origin of escalators
Published
On Aug. 9, 1859, the patent for "revolving stairs" was awarded to Nathan Ames. It was the first step toward the modern escalator. Charles Osgood reports.
Full ArticlePublished
On Aug. 9, 1859, the patent for "revolving stairs" was awarded to Nathan Ames. It was the first step toward the modern escalator. Charles Osgood reports.
Full Article