Library.

“Renaissance aesthetics in Europe were strongly influenced by the rediscovery of ancient Greek and Roman art and culture.”

The evidence strongly supports this description of Renaissance aesthetics. Reliable museum, encyclopedia, and academic sources consistently show that the rediscovery of Greek and Roman art, architecture, and literature was a central influence on Renaissance ideals such as proportion, naturalism, and classical form. Other influences also mattered, but they do not negate the claim.

“Ancient Greece is considered the cradle of democracy.”

Ancient Greece, particularly Athens, is widely described in academic, educational, and public sources as the cradle or birthplace of democracy. Some historians note that democratic or proto-democratic practices may have existed elsewhere, but that does not undermine the narrower point about how Greece is commonly regarded. The wording is accurate as a statement about historical characterization.

“Alexander the Great was shorter than the average adult male of his era (4th century BC).”

The claim is directionally supported but misleadingly framed. Most credible sources estimate Alexander's height at roughly 5'3"–5'7" (1.60–1.70 m), while the average Greek male of his era stood approximately 5'6"–5'7" (1.67–1.70 m). The difference — just 2–5 cm in the most careful estimates — falls within the margin of error for ancient textual and skeletal data. Describing Alexander as definitively "shorter than average" overstates what the uncertain evidence actually shows; "at or near average" is more accurate.