There are several references to National Bra Day. While they vary from National (BRA) Breast Reconstruction Day to No Bra Day, an annual observance on October 13 on which women are encouraged to go braless as a means to encourage breast cancer awareness, the day is set aside to encourage breast cancer awareness. No Bra Day was initially observed on July 9, 2011, but within three years it had moved to the 9th day of August. Since 2015, the event has only been promoted on October 13.
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National Train Your Brain Day
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International Day for Disaster Risk Reduction
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World Thrombosis Day
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