Which text is vaulble for gaining contex clues about historical even but is unreliable evedince

Who was the first explorer to sail all the way down the mississippi river

How did the cleveland massacre impact standard oil in 1872? standard oil hired all the laborers who were nearly killed during the cleveland massacre. standard oil became a monopoly in the cleveland oil market after the cleveland massacre. standard oil was bought out by other companies in the city after the cleveland massacre. standard oil closed down to avoid additional violence in the wake of the cleveland massacre.

What were some economic, social, and political effects that the industrial revolution had on great britain? describe at least one economic, social, and political effect.