Earth Day Apr. 22, 2024

Today is Earth Day—a day dedicated to celebrating the planet we call home and raising awareness of environmental problems. The seeds of this day were planted back in 1969 when Gaylord Nelson, the then-Wisconsin senator, witnessed events like the Cuyahoga River catching fire and the Santa Barbara oil spill and decided that the world needed an environmental initiative. A year later, the first Earth Day event was held. Now, it has grown into an annual event with more than a billion people in over 193 countries taking part.

© Ralph Pace/Minden Pictures

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Today in History

Where can you find this cute creature?
Apr. 22, 2025Earth Day

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A mountaintop cultural wonder
Oct. 30, 2023Common raven
Sep. 9, 2025A female Eurasian red squirrel, Switzerland
Sunlight turning silver to gold
Dec. 22, 2024Christmas tree at Crystal Pier, San Diego, California, United States
The Rainbow Bridge
Colours of spring
Aug. 29, 2023Zelenci Nature Reserve, Slovenia
Jun. 7, 2024World Oceans Day
Babbling on and on
A triumphant pose
Apr. 9, 2024World Ski and Snowboard Festival
Oct. 24, 2024Bodie State Historic Park, California, United States
Apr. 30, 2025International Jazz Day
Nov. 20, 2024World Childrens Day
A rainbow that’s worth the rainfall
Apr. 16, 2025Anniversary of Natural Bridges National Monument, Utah, United States
Nov. 12, 2023Diwali
High above the Aegean Sea
May 26, 2024Methow Valley, North Cascades, Washington
Rocky Mountain runoff
Jan. 23, 2024Maldives
Jul. 14, 2025Shark Awareness Day
Giddy family fun
The sprout with amazing potential
Jul. 20, 2025Moon Day
Leaf-peeping Southern style
A breathtaking cave when it’s cold
Jul. 22, 2025Badlands National Park, South Dakota, United States
Mar. 12, 2025Château de Sully-sur-Loire, Centre-Val de Loire, France