Clarksville is a town in Clark County, Indiana, United States, along the Ohio River and is a part of the Louisville Metropolitan area.

The site that would become Clarksville was first used as a base of operations by George Rogers Clark during the American Revolutionary War.

Several localities other than Clarksville claim precedence for the start of the Lewis and Clark Expedition, most notably St. Louis, Missouri.

On August 24, 1805, the Indiana Territorial Legislature authorized the construction of a canal around the Falls of the Ohio at Clarksville.

The lack of a canal handicapped the growth of the town as the Falls of the Ohio made river transport from the city difficult.

[8] Clarksville became a popular dueling spot for Kentuckians who wanted to dodge their home state's anti-dueling laws.

[9] There was an attempt to build a second town within Clarksville's boundaries, named Ohio Falls City, until the Indiana Supreme Court ruled that this would be illegal.

The historic records related to this governmental change were lost in the Ohio River flood of 1937.

The entire town was submerged beneath as much as 12 feet (3.7 m) of water in some areas for over three weeks during January and February.

The post-World War II housing boom and new jobs brought growth to the city.

The fossils include plant and marine life from a prehistoric coral reef that are 386 million years old.

Many locals still mistakenly claim it as the "2nd largest clock in the world", but it was surpassed years ago.

The town has vowed to keep the clock in its current location, which can be seen from across the river in downtown Louisville, Kentucky.

[17] The restaurant chain Texas Roadhouse first started in Clarksville, and its original location is open as an outlet at the Green Tree Mall.

Clarksville is the home of the United States's second-largest Bass Pro at the River Falls Mall.

Bewdley and Melton Mowbray in the UK were the first sister cities to begin friendship ties in 1998 and 1999 and relations have continued.

[19] Most recently La Garenne-Colombes in Paris urban area, France joined the sister cities of Clarksville.