The first mobile phone call took place in 1973, conducted by Martin Cooper, an engineer at Motorola. Cooper made the call on a prototype mobile phone to a rival company, Bell Labs, to demonstrate the capability of this groundbreaking technology. The device he used was a large and bulky model compared to today’s smartphones, weighing around 2.5 pounds. This event marked the beginning of the mobile communication revolution, leading to the development of cellular networks and eventually the compact, multifunctional devices we use today.