Fighting in Vietnam started in 1954 when technically France tried to reassert its colonial claims to Indochina, although Japan had claims as well. It was primarily a colonial beginning.
I guess there should be options to choose. Anyway, I know that the answer is: Christopher Columbus planned to find a more direct route to Asia by <span>sailing west across the Atlantic Ocean</span>. He convinced Spanish government to finance a plan to find a rout to Asia through the west across Atlantic. He reached the Caribbean but he thought that he reached West Indies island. This is how European colonization of America began.
Henry Ford was the first man to create the concept of the assembly line. This was when every employee was responsible for assembling only one part on Ford's cars. The assembly line was able to ramp up production and turned thousands of cars every month which resulted in more profits for Ford.