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Canada's Arctic noise is no party for narwhals
Known as the "unicorns of the sea," narwhals are fleeing Canada's far north. Researchers suspect a link to noise pollution from increasing ship traffic.
First seen · 2:32 PM UTCApril 28, 2026
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National Heroes' Day
National Heroes' Day is observed in Barbados. Recognized nationally.
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Open →Public holiday
Workers' Memorial Day
Workers' Memorial Day is observed in Gibraltar. Recognized nationally.
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Open →Pop culture
National Superhero Day
Created by Marvel Comics employees in 1995, the day has grown beyond comics into a celebration of the fictional and real — the nurses, teachers, and firefighters alongside Batman and Wonder Woman. The superhero film industry now generates more than $5 billion annually, making heroes the dominant narrative form of the 21st century.
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Open →Also on this date in history
All →2004
CBS News releases evidence of the Abu Ghraib torture and prisoner abuse. The photographs show rape and abuse from the American troops over Iraqi detainees.
Milestone1996
Whitewater controversy: President Bill Clinton gives a 41⁄2 hour videotaped testimony for the defense.
Politics1996
Port Arthur massacre, Tasmania: A gunman, Martin Bryant, opens fire at the Broad Arrow Cafe in Port Arthur, Tasmania, killing 35 people and wounding 23 others.
Disaster