Why is tutankhamun’s tomb, the most complete pharaoh’s tomb discovered, such a significant discovery?

It provides detailed insights into life and death in ancient Egypt.

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.

this is a good question! i'll do some research and come back when i have the answer!