Who was a major influence on the theory on world travel?
Napoleon.
Who used this theory early on?
The French
Since when?
at least the late 18th century.
Why do some say the noblemen drove their carriage on the left?
forcing the peasants to the right
Where did Napoleon bring right-handed traffic?
to the nations he conquered
Including where?
including Russia, Switzerland and Germany.
Who ordered this in Austria?
. Hitler
Where else?
Czechoslovakia
What year?
1930s
Who followed left-hand tradition?
Great Britain
Did the US always adopt right-handed?
No
What was the tradition in early history?
carriage and horse traffic traveled on the left
When did it switch to the right?
by the late 1700s
Why?
to see traffic clearly
When did the final move standardize traffic directions in the US
in the 20th century,
who help decide this?
Henry Ford
How?
to mass-produce his cars with controls on the left
Who else converted to these standards?
Canada
When?
Canada in the 1920s,
Who else?
Sweden
When?
Sweden in 1967