What did study of the Rosetta Stone allow people to do?

In the 19th century, the Rosetta Stone helped scholars at long last crack the code of hieroglyphics, the ancient Egyptian writing system. ... Ultimately, it was French linguist Jean-Francois Champollion who deciphered the Rosetta Stone and cracked the hieroglyphic code.

Explanation:

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.