- Types:
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iron curtain
an impenetrable barrier to communication or information especially as imposed by rigid censorship and secrecy; used by Winston Churchill in 1946 to describe the demarcation between democratic and communist countries
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bamboo curtain
an ideological barrier around communist China especially in the 1950s and 1960s
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Jim Crow, color bar, color line, colour bar, colour line
barrier preventing blacks from participating in various activities with whites
