Investigating and rconstructing and preservig the past Hercullaneum and Pompeii By Kathy28 Period: Mar 16, 1800 to Mar 16, 1990 Changing methods Period: Mar 16, 1800 to Mar 16, 1899 Karl Weber Period: Mar 16, 1900 to Mar 16, 1990 Giuseppe Fiorelli Period: Mar 16, 1924 to Mar 16, 1961 Amedo Maiuri