After murdering his brother Geta, Caracalla ordered removing his name from public life. Originally, 174 records of his name survived, however, 37 have survived to our times. Many of the inscriptions are found on the water pipes, which were probably located underground before the edict of Caracalla.
Interestingly, Caracalla hated his brother so much that even ridiculing the name of Geta in plays (the name was given to slaves in comedies) was not enough for him and he had to remove names also from plays.