indentured servitude continued. Slaveholders created a "loophole", that the provision did not apply to African Americans who were already enslaved in the state. In 1816, the Constitution of Indiana made forced labor illegal, stating that "there shall be neither slavery nor involuntary servitude in this state." Polly Strong, an enslaved woman of Vincennes, was the plaintiff in a case that argued that she should be free. After losing in the Harrison County Circuit Court, she won the case at the Indiana Supreme Court on July 22, 1820, and she was freed. In the case of Clark's attorney appealed the decision with the Indiana Supreme Court in the case of Mary Clark v. G.W. Johnston was a former slave who was made an indentured servant and lived in Vincennes. She won her freedom on November 6, 1821, when the Indiana Supreme Court ruled that servitude violated the state's 1816 Constitution. This was a landmark contract law case for indentured servants and foretold the end of forced labor in Indiana. Unofficial city flag This flag for the city of Vincennes, Indiana, albeit unofficial, is used around the city. It features the signature V, four fleurs-de-lis, symbolizing the city's French heritage, its existence in four centuries: 18th, 19th, 20th, and 21st, since the city's establishment in 1732. Similar in appearance to the flag of Indianapolis, Vincennes' flag is more squared in appearance and has a diamond center rather than a circle. It represents the layout of Vincennes. White stripes radiating from the diamond represent Vincennes' part in the settlement of the frontier, as it was at the crossroads of several great pioneer trails. Geography Vincennes is located on the banks of the Wabash River at the western edge of Knox County; this is also the western edge of the state of Indiana, and Illinois is across the river to the west. The city lies about southwest of Indianapolis. U.S. Route 41 passes through the city from north to south, and U.S. Route 50 passes just to the north of the city from east to west. According to the 2010 census, Vincennes has a total area of , of which (or 99.09%) is land and (or 0.91%) is water. Climate Vincennes has a humid subtropical climate with hot summers and cool winters with heavy rainfall at times throughout much of the year. There are an average of 53.1 days with highs of or higher