Democratic Sentinel, Volume 16, Number 38, Rensselaer, Jasper County, 7 October 1892 — Inventions and Their Dates. [ARTICLE]

Inventions and Their Dates.

The amalgamator was an American invention by Varney about 1850. The first training school for teachert was organized in Prussia in 1735. Machines for making tacks were first made by Thomas Blanchard, 1806. Threshing maclfines were invented by Menzies, a Scotchman, in 1732. The method of vulcanizing rubbei was invented by Goodyear in 1849.