"For a hundred years, from the early 1800s to the early 1900s, Europe and America had cities of at least a million people that ran on a massive, sophisticated network of carriages and streetcars. By 1880, according to historian John H. White, Jr., US cities had 415 horse-drawn railways running, with 18,000 cars on 3,000 miles of track, carrying 1.2 billion passengers a year. Most of these lines continued decades into the age of electricity and coal, simply because the horses worked better than any other option." Read: Horse-drawn public tranportation. Thanks, Johan. Previously: Bring back the horses.