The Doric order is the oldest of the Greek schools of architecture, dating back to the 7th century BCE. It originated in the mainland of Greece and is characterized by sturdy, simple columns with no base and a plain, capital. Doric temples, such as the Parthenon in Athens, exemplify this architectural style, showcasing its robust and dignified appearance. Over time, the Doric order evolved and spread throughout the Greek world, influencing subsequent architectural styles in ancient Greece and beyond. Its enduring legacy continues to inspire architects and designers to this day.