A relative humidity level between 40% and 50% is generally considered to be the most comfortable. Anywhere from 30% to 60% is acceptable, but ideally you want to avoid the extremes of that range.
Ancient Greek civilization began around 1600 BC, at Mycenae and in Crete. It ended with the annexation of Greece by Rome in 146 BC. It was at its height around 431 BC, when the Peloponnesian War between Sparta and Athens began.
Greece was home to a rich civilization that reached its peak between 500 BC and 300 BC. Its people lived by farming, fishing, crafts, and trading. They built 300 CITY-STATES and settled in colonies. In 146 BC, Greece was conquered by Rome, but many aspects of Greek culture still shape our world.