chapter 12 By heltopa08 May 1, 1769 richard arkwright invented a large spinnig machine May 1, 1793 Slater opened thier first mill May 1, 1798 slater formed his own company to build a mill May 1, 1798 Eli whitney came up with interchangable parts Aug 9, 1807 clermont traveled up the hudson river without trouble May 1, 1810 secretary of the treasury alber gallatin sugessted why there were so many factories May 1, 1814 lowell's first textile mill opened Feb 1, 1815 New yorkers celebrated the end of the war of 1812 May 1, 1822 lowell built a larger mill May 1, 1824 gibbons v ogden May 1, 1830 peter cooper built a small pwerfull locomotive May 1, 1840 matin van buren had granted a 10 hour workday May 1, 1844 stuglle of factory labors May 1, 1845 sarah bagley was elected vice president May 1, 1850 steamboats were being used to carry people and good across the atlantic ocean