This document provides brief summaries of several important discoveries and inventions throughout history: - Fire was likely one of the earliest discoveries by early humans in the Stone Age, providing light, heat, and a way to cook food. - The Wright brothers were the first to fly powered aircraft in 1903, marking the beginning of aviation. - John Logie Baird invented the first black and white television in the 1920s and introduced the concept to Guillermo Gonzalez Camarena in Mexico. - Benjamin Franklin's discovery of electricity in the late 18th century was foundational for modern society and all subsequent scientific advances that rely on power.