1819 Cincinnati is incorporated as a city.

1811 The very first riverboat, Orleans, steams into town, changing everything in terms of commerce. A settlement becomes a city in short order.

1828 The first "interstate," the Miami Canal, opens between Cincy and Dayton.

1837 Candle maker William Procter and soap maker James Gamble first formulate plans for starting a modest soap business.

1845 The city that has become known as "Porkopolis" is now the world's largest hog-butchering operation.

1867 The Roebling Suspension Bridge opens, providing a much-needed overland link between Kentucky and Ohio.

1870 Louis Graeter sells his first ice cream from a Court Street market stand.

1883 Barney Kroger opens his first grocery, the Great Western Tea Co. Later, the company will become known as Kroger.

1891 D.H. Baldwin opens his piano manufacturing company.

1921 Entrepreneur Powel Crosley Jr. buys his first radio set and quickly decides to start his own radio manufacturing business. Crosley cars, Crosley kitchen appliances, WLW, and more are on the horizon.

1933 Work is completed on the city's new transit central, Union Terminal rail station. The cost is $41 million (less than the estimated value of the Rookwood tile in the building today).

1949 Nicholas Lambrinides opens a restaurant in Price Hill, naming it Skyline Chili in honor of the panoramic view.

1960 On "Sabin Sunday," nearly 200,000 Cincinnati schoolchildren are the first of their generation to be inoculated with a polio vaccine developed by a Children's Hospital physician named Albert B. Sabin.

1967 Paul Brown wins the football franchise for Cincinnati.

1970 The last baseball game is played at Crosley Field, and the first game at Riverfront Stadium.

1972 Kings Island amusement park opens.

1975 Game 7, the World Series. The first of two, back-to-back Series wins.

1978 WKRP in Cincinnati premieres on CBS, giving the city new and unimaginable national exposure.

1984 A local car dealer, Marge Schott, announces she is buying the Reds.

1985 Peter Edward Rose steps to the plate at Riverfront Stadium. Hit 4,191 surpasses the record set by Ty Cobb.

1988 The first Tall Stacks opens, the crown jewel of the city's Bicentennial celebration.

1990 Coach Lou Piniella and his Reds win the World Series, a sweep against Oakland after a wire-to-wire season.

1990 Cincinnati Museum Center opens inside the shuttered Union Terminal.

1993 Cincinnati is named the No. 1 best place to live in America by Places Rated Almanac.

1995 The Aronoff Center for the Arts opens.

2000 Paul Brown Stadium, the new home of the Cincinnati Bengals, opens.

2001 Newport on the Levee opens in Newport. The 10-acre mall on the riverfront features nightclubs, restaurants, upscale retail, a comedy club, bookstores, a 20-screen AMC movie complex, GameWorks arcade, and the Newport Aquarium.

2003 The Great American Ballpark opens as the new home of the Cincinnati Reds.

2003 The Rosenthal Center for Contem-porary Art opens. The high-rise museum is hailed by a New York Times critic as the most important building to open in the United States since the end of the Cold War.

2004 The Taft Museum of Art reopens after a two-year expansion project.

2004 The National Underground Railroad Freedom Center opens.