1792; Jefferson proposed to the American Philosophical Society to organize a party of scientists to explore Northwest America to the head of the Missouri river, there cross the Rocky mountains and then follow down some river to the Pacific ocean.
April 30, 1803; Jefferson purchases the Louisiana province of France—territory to make thirteen states.
May 14, 1804; Lewis and Clark expedition starts from St. Louis for Oregon.
August 12, 1805; L. & C. crosses Louisiana territory into Oregon territory.
November 7, 1805; reaches mouth of Columbia river.
March 23, 1806; expedition leaves Fort Clatsop on return trip.
April 3, 1806; reaches Linnton, camps on Portland townsite.
April 7, 1806; camps at White Salmon, river—seen by Indian boy, Tomitsk, yet alive, picture on another page.
September 23, 1806; expedition returns to St. Louis.
September, 1824; Dr. John McLoughlin reaches Oregon, and takes control of Hudson Bay company.
September 15, 1834; Jason Lee reaches Oregon, and preaches first sermon.
September 2, 1836; Marcus Whitman reaches Oregon and founds Wailatpu.
May 2, 1843; pioneers organize provisional government at Champoeg.
June 15, 1846; title to Oregon settled by treaty with Great Britain.
October 10, 1846; Lieut. Howison presents U. S. flag to provisional government.
August 14, 1848; congress passes act to organize Oregon territory.
August, 1851; Portland incorporated.
February 14, 1859; president signed act of congress admitting Oregon to the Union.
April 15, 1868; ground broke in south Portland for general railroad system.
September 8, 1883; Northern Pacific railroad across continent connected with Portland.
May 5, 1884; railroad completed from Portland to Ashland.
November 1, 1895; Daniel McAUen proposes Lewis and Clark Exposition to Henry L. Pittock.
May 1, 1900; provisional committee of arrangements for Lewis and Clark fair, organized—J. M. Long—chairman.
December 15, 1900; proposition for fair endorsed by Oregon Historical Society.
February 21, 1901; endorsed by Oregon legislature.
October 15, 1901; Lewis and Clark Exposition Association incorporated. Capital $300,000.
January 21, 1901; stock all taken, H. W. Corbett elected president.
February 14, 1902; capital stock of exposition company increased to $500,000.
July 15, 1902; Guild's Lake chosen for site of exposition.
January 30, 1903; Oregon legislature appropriates $450,000 to exposition.
March 31, 1903; Henry W. Corbett dies.
May 21, 1903; corner stone, Lewis and Clark monument in city park, laid by President Theodore Roosevelt.
July 24, 1903; Harvey W. Scott elected president of exposition company, and H. W. Goode, director general.
February 8, 1904; U. S. senate passed Senator Mitchell's bill appropriating $1,775,000 to the exposition.
April 8, 1904; congress passed bill providing $1,000,000 in souvenir Lewis and Clark gold dollar coins.
May 3, 1904; ground-breaking ceremonies for construction of exposition buildings.
August 8, 1904; H. W. Scott resigns as president, and H. W. Goode elected his successor.
May 1, 1905; fair buildings completed on contract time.
