The was erected by augustus and bears upon it in letters of gilt bronze the distances to all the cities of the empire.

The Milliarium Aureum also known as Golden milestone

 It was erected by Augustus Caesar near the temple of Saturn and the central forum of ancient Rome. It was made of marble or gilded bronze.

This is what i found on google “the first mobile phone call was made 40 years ago today. on april 3, 1973, motorola employee martin cooper stood in midtown manhattan and placed a call to the headquarters of bell labs in new jersey.” i hope this you for what your looking.