Why is Australia called the land down under?
The other day I was watching a video where two people was chatting about a trip to Australia and then they referred to it as the land down under.

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If you look at the globe, it's position is in the Southern hemisphere. So because it's  on the underside of the globe, it gets this nickname.

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"Down under" is a colloquial expression meaning "in the southern hemisphere". I assume because on a map, Australia and New Zealand are under, or below, the rest of the British Empire.