Since rosa parks was not the first african american women arrested for bus violation,why did her arrest ignite the boycott?

I’m not sure if this is the answer you want, but from what I gathered, it looks like there had been lots of planning to boycott before this incident. Parks was an active member of this discussion and some think that her refusal to move was a challenge. When she was arrested, African American rights groups such as the NAACP took that as a chance to begin the boycott, which was organized by Martin Luther King Jr.

The jobs relating to mass business paved the way for a global economy that is present today; the presence of mass business throughout the continent, even the world, blossomed thanks to the steam locomotive.

Explanation:

For example, British iron production increased nearly 2,500% from 1796 to 1854, evidently due to the invention of the steam locomotive.