Visit Jillson House Museum
First Founders: Joshua Uncas, Robin Cassacinamon & the Birth of Windham
Thu, May 14
|Mill Museum
Part of our 250th Celebration! A celebration recognizing the contributions and legacy of Joshua Uncas and the founding of Windham. RSVP is required please. EVENT IS MOVED TO THE MILL MUSEUM BECAUSE OF RAIN!


Time & Location
May 14, 2026, 5:00 PM – 7:00 PM
Mill Museum, 411 Main St, Willimantic, CT 06226, USA
About the event
On May 14, join us as we mark 350 years of Windham with its founding story. We'll commemorate Joshua Uncas of the Mohegan Nation, who gifted the land, and Robin Cassacinamon, governor of the Pequot Nation, who guided the first settlers to what would become Windham County. Martin Moebus will present the history of the founding of our town and David Eichelberg, Outreach Coordinator for Mohegan Tribe Cultural Development, will speak about the Mohegan tribe's relationship to this land.
The evening will include a presentation exploring the roles of Joshua Uncas and Robin Cassacinamon in King Philip's War, the contents of Uncas's will, and the story of that first English journey into Windham County. A display will feature a copy of Uncas's will, historical maps, and artifacts provided by the Mohegan tribe.
BECAUSE OF THE IMPENDING RAIN AND COLD TEMPS THIS EVENT IS MOVED TO
THE MILL MUSEUM, 411 MAIN ST, WILLIMANTIC!