Full Text:1800-1851 1803 United States purchases Louisiana Territory at the behest of President Jefferson. 1803-1805 Lewis & Clark Expedition to the Pacific Northwest. 1809 Illinois Territory formed; includes present Illinois, Wisconsin, and parts of Michigan and Minnesota. 1812 War with Britain begins: Massacre at Fort Dearborn. 1818 Congress passes enabling legislation to form state of Illinois. Illinois territory's delegate to Congress, Nathaniel Pope, wins an amendment to put northern boundary at 42° 30' instead of the bottom tip of Lake Michigan. After creative census is complete Illinois becomes a state on Dec. 3. First Illinois Constitution adopted. 1820 Illinois population 55,211. 1825 Erie Canal completed between Lake Erie and Albany, N.Y.; shippingtime 8 days instead of 20 days. First passenger train operates in England. 1830 Illinois population 157,445. 1831 Cook County formed; includes present Cook, Lake, McHenry, DuPage and Will Counties. 1832 Blackhawk War. Steamboat trade on Great Lakes reaches Chicago from Buffalo, N.Y. 1834 Federal land office opens in Chicago. U.S. Congress approves Treaty of Chicago; Indians cede land in northern Illinois but are not required to vacate until August 1836. 1836 Legislature creates McHenry County from Cook County; includes present Lake County. Federal land offices now accept only gold or silver for land claims. Construction of Illinois-Michigan Canal begins. 1837 Panic occurs when National Bank ceases to exist and state banks extend too much credit so currency does not hold value. John Deere invents steel plow that can plow thick prairie sod. Liquor license in county costs $8.00 and sets prices; whiskey is 12V2 cents. 1838 Surveyors begin at third principal meridian and move eastward, finishing at the lake 4 years later. 1839 Illinois Legislature divides McHenry County to form Lake County. County seat is left at McHenry. 1840 Population: Illinois 476,183; Chicago 4,470; McHenry County 2,578. Took 3 days by oxen to haul grain to Chicago. 1840 Unhappy with $15 million state improvement debt, delegates from 14 counties meet at Rockford to propose secession from Illinois and annexation to Wisconsin. 1843 Log house is built by Bradford Burbank and Post Office established; Alvin Judd is named postmaster. On Sept. 4 Centerville wins vote to have county seat. 1844 Alvin Judd builds frame building and opens first tavern, has large room for gatherings. Judd's land preemption claim is legalized by special act of Congress and U.S. Receiver awards land to him January 24. Land is transferred to George C. Dean on February 22. County Commissioners accept Centerville plat. George C. Dean and Daniel Blair build plain 2-story frame courthouse and jail in Public Square and county offices are moved in on September 23. Wm. Sloan plants nursery west of town. 1845 Centerville being an overly common name, Joel H. Johnson steers change of name to Woodstock through Legislature; his native town in Vermont. Dwight & Beach open first store. 1846-1848 Mexican War 1846 Illinois Republican is first newspaper in Woodstock. First Presbyterian congregation meets and first school taught in courthouse. County builds "fireproof" 2-story brick building with tin roof on the corner of Dietz and Benton to house county offices; it becomes known as the Old Rat Hole because County officers are called rats by some. 1847 First school is built on school lot (possibly log). McCormick begins building his reaper in Chicago. 1848 Illinois-Michigan Canal between Chicago and Illinois River is completed. Many canal workers settle in the area. Second Illinois Constitution adopted. Presbyterian church is built. Grist mill, brewery, hardware, shoemaker, drug store, newspaper, blacksmith, wagon makers, taverns, groceries, and attorneys are in business by late 1840s in Woodstock. 1849 County voters approve township form of government with Board of Supervisors as allowed by new Constitution. 1850 Population: Illinois 851,470; Chicago 29,963; McHenry County 14,978; Dorr Township 1,139. 1851 South side of Public Square is swept clean by fire; Argus newspaper and 3 other businesses lost. It is reported that Illinois-Wisconsin railroad has charter to build from state line to Chicago. County and Algonquin to build bridge over the Fox River for railroad. Many advertisers in newspaper are from Lake Street in Chicago. Ownership and location of businesses in Woodstock change frequently; a trend which continues to today.