March 15 is known as the Ides of March in the Roman calendar. It is famously associated with the assassination of Julius Caesar in 44 BCE, a pivotal event in Roman history. The term "Ides" refers to the middle of the month, and in March, it falls on the 15th. In modern times, March 15 is also recognized as World Consumer Rights Day, which aims to raise awareness about consumer rights and protection. Various organizations and activists use this day to promote fair trade practices and advocate for consumers' rights globally.