The Madison Historical Society will host an open house on April 18, from 11 am to 1 pm, at the historic Allis-Bushnell House Museum, located at 853 Boston Post Road. Visitors are invited to explore the current Madison 200 exhibit, A Town Named Madison: Celebrating 200 Years, which highlights the individuals who shaped our town through photography, poetry, and philanthropy. Among the museum’s latest offerings are displays and audio recordings honoring these notable Madison figures.