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Women in China are telling each other to bring their boyfriends to see 'Barbie' — and to use it as a litmus test for their thoughts on feminism and patriarchy
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It's a line China drew in the south china sea and claim its theirs for historical reason if I remember correctly.
Pissed off a load of other countries as it claimed some of their ocean defined by international law
Wikipedia link: https://en.m.wikipedia.org/wiki/Nine-dash_line