Ancient Empire Sneaker Design Grid

{"input": "Ancient Empires (such as Rome, Ottoman, Aztec, Ming Dynasty)", "pick 4 specific distinct eras or ruler periods within that empire": "Select 4 specific and distinct periods or ruler periods within that empire", "function drawx($era)": "function drawx($era)", "Anchor 1": "\"$era's Weapons and Armor\"(Its texture, material, and color)", "Anchor 2": "\"$era's Religious Artifact"(Its texture, material, and color)", "Anchor 3": "\"$era's Royal Jewelry\"(Its texture, material, and color)", "Instruction": "Render a pair of high-top sneakers designed exactly at the center of the triangle", "output": "2x2 grid, executed for each period drawx()"}