Western Timeline By Kotac7 Period: Nov 2, 1734 to Sep 26, 1820 Daniele Boone Pioneer, known for discovering Kentucky Period: Dec 8, 1765 to Jan 8, 1825 Eli Whitney Known for making the cotton gin Period: Sep 4, 1802 to Nov 29, 1847 Marcus and Narcissa Whitman Made a trading post near Oregon Trail. Period: Jan 21, 1813 to Jul 13, 1890 John Fremont First candidate of the anti-slavery republican party. Period: Jan 28, 1848 to Jan 28, 1855 The California Gold Rush James Marshall found gold in California.