In which year did McDonald's introduce the Egg McMuffin?

The Egg McMuffin was introduced by McDonald's in 1971, marking a significant moment in the fast-food breakfast market. This sandwich is credited with being one of the first popular fast-food breakfast items and played a pivotal role in expanding breakfast offerings at fast-food restaurants. The introduction of the Egg McMuffin not only showcased McDonald's innovation in menu development but also helped to establish breakfast as a key meal period for the brand, setting a trend that many other fast-food chains would follow in later years. Its success demonstrated the potential for breakfast items to attract customers beyond the traditional lunch and dinner offerings, thereby transforming how breakfast was perceived in the fast-food industry.