• All
• 1930s1
• 1940s0
• 1950s0
• 1960s1
• 1970s2
• 1980s3
• 1990s1
• 2000s2
• 2010s0

• All
• Disaster / Accident 1
• Environment 1
• Other 3
• Politics 10
• Religion / Belief 6
• War / Conflict 3

• South Africa 11
• South Africa Under Apartheid 8
• Africa 6
• Racial Segregation 6
• Racism 6
• Oligarchy 5
• International Relations 4
• Nicaragua 4
• Americas 3
• Campaign For Nuclear Disarmament 3
• Cold War 3
• Geography 3
• Iran-contra Affair 3
• Margaret Thatcher 3
• Palestine Liberation Organization 3

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