Final answer:
Alexandria was the largest Greek city in the Hellenistic period, founded by Alexander the Great and serving as the capital of the Ptolemaic kingdom. It had a population of one million and was renowned for its cultural and intellectual achievements.
Step-by-step explanation:
Alexandria was the largest Greek city in the Hellenistic period. It was founded by Alexander the Great in 331 BCE and served as the capital of the Ptolemaic kingdom. With a population that reached one million, Alexandria was known for its cultural and intellectual achievements, including the famous Library of Alexandria.