It was created in 1939 for the World's Fair by dredging up dirt from the San Francisco Bay.
In WWII it became part of the Treasure Island Naval Base[?]. In 1996 it and the Presidio Army Base[?] were decommissioned, and opened to public control, under stipulations.
... to antigens present in the body. If the body is exposed to foreign antigens, as by getting a tissue graft[?], it attacks the foreign material un ...
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