The supreme leaders of the DPRK have been Kim Il-sung, his son Kim Jong-il, and his grandson Kim Jong-un.
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The American Revolution was principally caused by colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War (1754–63).
Answer: How long of a summary
Explanation:
Generally speaking, collective learning is the ability to learn and transfer "knowledge" to others, through either direct, one-on-one action or indirect action.