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What Happened on September 21, 1987 - On This Day
User Clip: President Reagan on Aliens and Peace | C-SPAN.org
September 21, 1987: Facts & Myths About This Day - Day In History
September 21, 1987, What happened that day? | TakeMeBack.to
September 21 - Wikipedia
Historical Events in September 1987 - On This Day
Ronald Reagan, UN, September 21, 1987 - YouTube
International Day of Peace - Wikipedia
What Happened on September 21 - HISTORY
What Happened in September 1987 - On This Day