National Punctuation Day is celebrated annually on September 24. This day aims to promote the importance of proper punctuation in writing. It encourages people to pay attention to the rules of grammar and punctuation, which can significantly affect the clarity and meaning of written communication. Founded by Jeff Rubin in 2004, National Punctuation Day highlights various punctuation marks, such as commas, periods, and question marks. Activities often include educational events, writing contests, and discussions about the role of punctuation in effective communication. The day serves as a reminder that good punctuation is essential for clear expression in both personal and professional writing.