During the perioder in the late 1800U. B, there was an explosion of business, mechanization, and factory production

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.

They would be more crops at 1a and 1b more than 1c