Task: Text Simplification
Input (English): edo consequently rapidly grew from what had been a small , virtually unknown fishing village in 1457 to a metropolis with an estimated population of 1,000,000 by 1721 , the largest city in the world at the time.
Output (English): a virtually unknown fishing village in 1457 , edo grew rapidly to become a metropolis of about 1,000,000 by 1721 , making it the largest city in the world at that time.