What year did McDonald's begin to include breakfast items on their menu?

The inclusion of breakfast items on the McDonald's menu began in 1975, making it a significant year in the company's history. During this time, McDonald's tested breakfast items like the Egg McMuffin, which was created by Herb Peterson. This innovative menu addition aimed to attract customers during the morning hours and ultimately helped to redefine fast-food breakfast offerings across the industry. The expansion into breakfast became a crucial aspect of McDonald's strategy, allowing them to cater to a new segment of customers and establish a competitive edge in the fast-food market.