gq: The earliest surviving written work on the subject of architecture is De architectura, by the Roman architect Vitruvius in the early 1st century AD. According to Vitruvius, a good building should satisfy the three principles of firmitas, utilitas, venustas, commonly known by the original translation – firmness, commodity and delight. An equivalent in modern English would be:
Question: What was Vitruvius' profession? Question: What is the oldest architecture plans that has survived? Question: What is the first known extant writing about architecture called? Question: Who created the oldest surviving architecture plans? Question: Who was the author of  De architectura? Question: When did Vitruvius create these plans? Question: What were Vitruvius' three principles for a well made building? Question: What are the three principles every plan should consider? Question: What is the commonly seen English translation of the three principles?