The Law Library, the Family Law Self Help Center, and the Circuit Court for Anne Arundel County is closed today November 28, 2019 and tomorrow, November 29, 2019 for the Thanksgiving Holiday. The Law Library will reopen on Monday, December 2, 2019. A list of Court Holidays is available here. Except on Court Holidays, the Library is open Monday through Friday, from 8:30 a.m. until 4:30 p.m.
Read this article, Congress Establishes Thanksgiving, at the National Archives website to find out how Thanksgiving became a holiday.