But the one before that was visible only to your great-great-grandparents, on December 6, 1882.

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Loopholes such as if your great-Grandparents immigrated to the United States, but eventually moved to Canada, one could possibly still qualify.

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Your parents, your grandparents, your great-grandparents, they remembered what it was like to be a stranger, and as a result treated strangers with compassion.

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Your parents, your grandparents, your great-grandparents -- they went through struggles.

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Some studies have shown that the effect can persist across generations, which means that genes that were not inherited from your great-grandparents could still be exerting an influence today.

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