Why is it important to learn the history of your own culture?

I need to write a paragraph for homework on why it’s important to learn about the history of your own culture. I need at least three good reasons.

Also, if i want to earn an A, which i do, i need another paragraph on why it’s important to learn about other cultures history. I need at least three good reasons for that too. I just cant think tonight and need a little help please.

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