Ever wondered why we automatically say "bless you" when someone sneezes? This age-old custom dates back to ancient times when people believed sneezes could expel one's soul or invite evil spirits. In 590 AD, Pope Gregory I suggested saying "God bless you" as protection from a plague sweeping through Rome. Over centuries, it evolved into a simple gesture of courtesy. Isn't it fascinating how daily actions have roots in history? Next time you say "bless you", you're echoing centuries of tradition in just two words! What other everyday customs carry unforeseen history in our lives?