Humboldt Park is a 207acre park located at 1400 North Sacramento Avenue, on the West Side of Chicago, Illinois.The park was named for Alexander von Humboldt, a German naturalist and botanist.HistoryWilliam Le Baron Jenney began developing the park in the 1870s, molding a flat prairie landscape into a "pleasure ground" with horse trails and a pair of lagoons. The park opened to the public in 1877, but landscape architects such as Jens Jensen made significant additions to the park over the next few decades. Between 1905 and 1920, Jensen connected the two lagoons with a river, planted a rose garden, and built a fieldhouse, boathouse, and music pavilion.The park played a prominent role in the past for Chicago's Polish Community. The Polish Constitution Day Parade once traditionally terminated here at the Tadeusz Kosciuszko statue that was located here before it was moved to Solidarity Promenade on the lakefront Museum Campus in 1981. Additionally, pianist and Polish statesman Ignace Paderewski delivered a famous address where he rallied Chicagoans to the cause of a free and independent Poland.