Graphic notes

1 America’s interstate highway system connects our nation coast to coast. It’s smooth and fast and gets us where we want to go. But it hasn’t always been that way. Cars Create Chaos 2 In 1893 Charles and Frank Duryea turned a broken-down horse carriage and a gasoline engine into the first gas-powered American automobile. It had no brakes. To stop it, they ran it into the curb, but there was no stopping its popularity. By 1905 forty-eight thousand Americans had cars.