This document traces the evolution of communication technologies from ancient times through the present day. It discusses how Julius Caesar communicated via courier and how generals during the American Revolution relied on couriers as well. The invention of the telegraph by Samuel Morse in 1844 allowed near-instant communication over long distances for the first time. The telephone, invented by Alexander Graham Bell in 1876, enabled spoken conversations remotely. Mobile phones and texting further increased connectivity and social media has led to a revival of written communication, even when people are together in person. Modern communication technologies have transformed how humans interact and share information.