Question:  Mabee House is part of the society that was established on what date?
Sentence (from "Schenectady County Historical Society"): Its stated mission as embodied in its constitution was, and remains, “to promote and encourage original historical research; to disseminate a greater knowledge of the history of the State of New York and particularly of Schenectady County; to gather, preserve, display, and make available for study artifacts, books, manuscripts, papers, photographs and other records and materials relating to the early and current history of Schenectady County, New York and of the surrounding area; to encourage the suitable marking of places of historic interest; to acquire by purchase, gifts, devise, or otherwise the title to or the custody and control of historic sites and structures.”
Relevant evidence: No