United Earth Star Fleet Headquarters, which included the grounds of the Space Academy.
#OnThisDay, 2135:
The United Earth Star Fleet Space Academy opened its doors to cadets for the first time, under the leadership of founder and Superintendent Stavros Niarchos VII. It shared its grounds with the UESF HQ on the Marin Peninsula, and would later become UFPSFA's Main Campus in 2161.