Is the Cold Food Festival Tomb-Sweeping Day?

Cold food festival, that is, cold food festival, also known as "no smoking festival", "cold food festival" and "Hundred Five Days Festival". One hundred and five days after the summer solstice, and two days before the ancient Tomb-Sweeping Day. Later, it merged directly with Tomb-Sweeping Day, so the Cold Food Festival was called Tomb-Sweeping Day, and Tomb-Sweeping Day was also called the Cold Food Festival. Smoking is forbidden and only cold food is eaten on this day, so it is called "Cold Food Festival". In the development of later generations, the customs of sweeping, hiking, swinging, cuju, holding hooks and breaking eggs gradually increased. The Cold Food Festival lasted for more than 2,000 years and was once called the largest folk festival. Many scholars have written poems about the Cold Food Festival.