http://inventors.about.com/od/timelines/a/Nineteenth.htm http://inventors.about.com/od/timelines/a/Nineteenth.htm 19th Century - the technology, science, and inventions 19th Century - Timeline Inventions of the 19th Century http://inventors.about.com/od/timelines/a/Nineteenth.htm Major American inventions of this period 1800-1846 http://inventors.about.com/od/timelines/a/Nineteenth.htm 19th Century - Timeline Inventions of the 19th Century About: Inventors 19th century http://inventors.about.com/od/timelines/a/Nineteenth.htm