What happened in spain before francisco franco started a civil war there?

Technician a says that the sine with dwell (swd) test is used to determine if an electronic stability control system functions normally. technician b says that the esc lamp, called a telltale light, is required to remain on for two minutes. who is correct?

How did the industrial revolution give an advantage to industrialized european nations over non-industriallized nations?

What was the relationship between japan and the united states in the early 1900s?