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): edo grew from a small unknown fishing village in 1457 to the largest city in the world . by 1721 , the population was estimated to be 1,000,000.721.