What year did people stop making wax seal?

The practice of using wax seals began to decline in the late 19th century with the advent of modern adhesives and printing technologies. While wax seals are still used today for certain formal occasions and personal correspondence, they are no longer a common method for sealing letters or documents. Thus, there isn't a specific year when people definitively stopped making wax seals, but their widespread use largely faded by the early 20th century.