From the site: "As the nation’s first historical society, the MHS strives to enhance the understanding of our nation’s past and its connection to the present, demonstrating that history is not just a series of events that happened to individuals long ago but is integral to the fabric of our daily lives. Its collections are accessible to anyone with an interest in American history. Beyond research, the MHS offers many ways for the public to enjoy its collections including engaging programs, thought-provoking exhibitions, publications, seminars, and teacher workshops."
They are offering some services online as the museum is closed due to COVID-19, including online exhibits and collections, public discussions on health and safety, and reader services as well as archival assistance via phone or email.