After the war, business declined when the Quebec government began clearing snow from secondary roads in 1948. Bombardier went on to build smaller snowmobiles during the 1950s and developed a new market for recreational products for one or two people. In 1959, he launched his world-famous Ski-Doo which was originally planned to be called Ski-Dog but a printing accident spelt it as Ski-Doo and the name has stuck ever since. The Ski-Doo was ranked 17th place on CBC Television's The Greatest Canadian Invention in 2007. Bombardier died in 1964 of cancer but the snowmobile idea was a success 225 units were sold during 1959 and more than 8,210 units were sold annually during 1963.