"German explorer and archaeologist" . . "Valentini, Philipp J. J.; Valentini, Philipp Johann Joseph; Valentini, P. J. J.; Valentini, Philip J. J.; Valentini, Felipe J.; Valentini, Ph. J. J."@en . "Philipp Johann Joseph Valentini (1828 \u2013 March 16, 1899) was an explorer and archaeologist of the Central American Pre-Columbian cultures. He worked extensively on diciphering the Mexican calendar stone."@en . "1899-03-16Z"^^ . "Valentini, Philipp Johann Josef"@en . . "1828Z"^^ . . . . . . "1899Z"^^ . "Philipp J. J. Valentini"@en . .