Answer:
ok dr Luther king wanted to create a allusion about stopping slavery so that the audience will get a mind set that slavery is a illegal and the allusion will always remind people that 100 years have passed since the emancipation proclamation.
I worked the problem out to show you
rail roads were way to move goods and raw martial on mass. rails roads could move supply faster and over a longer distance than using wagons or boats witch were limited on were they can go. causing an industrial boom.
