Gustav Heinrich Johann Apollon Tammann was a prominent Baltic German chemist-physicist who made important contributions in the fields of glassy and solid solutions, heterogeneous equilibria, crystallization, and metallurgy.

Kingisepp, formerly Yamburg (Я́мбург), Yam (Ям), and Yama, is a town and the administrative center of Kingiseppsky District of Leningrad Oblast, Russia, located along the Luga River 138 kilometers (86 mi) southwest of St. Petersburg, 20 kilometers (12 mi) east of Narva, and 40 kilometers (25 mi) south of the Gulf of Finland. Population: 48,488 (2010 Russian census); 50,295 (2002 Census); 49,954 (1989 Soviet census).