To give the Bible Students legal status, Zion’s Watch Tower Tract Society was incorporated in 1884 in the United States, with headquarters in Pittsburgh, Pennsylvania.
Piibliuurijad said juriidilise staatuse aastal 1884, kui Ühendriikides registreeriti korporatsioon Siioni Vahitorni Traktaatide Ühing, mille peakorter asus Pittsburghis Pennsylvanias.