1849: Zachary Taylor president of the USA 1849-1850. Zachary Taylor died while in office.
1849: Walter Hunt invents the safety pin.
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1850
1850: Millard Fillmore president of the USA 1850-1853. Millard Fillmore, vice president under Zachary Taylor, sworn in as president after Taylor's death.
1850: Joel Houghton was granted the first dishwasher patent.
1847 - 1850 (3 years)