Kalisz is a city in West-Central Poland, situated on the Prosna River. The excavations of a prehistoric village and mention of the settlement as Calisia by the astronomer-geographer Ptolemy in the 2nd century CE are evidence of the town’s antiquity. A powerful castle stood there from the 12th to the 14th century. Kalisz obtained town rights in 1282. Now industrialized, Kalisz specializes in textile production, a trade begun during the 15th century. Engineering and food processing are also important to the local economy. One of the most important and innovative sectors in the city is the aviation industry. The city contains many scenic parks and historic churches, as well as a theatre and regional museum. It is represented in this project by the Municipality of Kalisz.