In short, I believe Darwin's theory was controversial in the 1800s because it contradicted the biblical view of creation.
(Sorry for the shortness.)
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A good starting point would be describing the Phoenicians. Saying who they were, when they rose and when they fell, etc. Then end the paragraph with "This is how this magnificent culture influenced Rome" then start your essay on how they influenced it with "The first way the Phoenicians influenced Rome is..."
Hope this helped. Have a great day!
False, the europeans have not yet discovered the americas until 1492 far after the final crusades.