Slavery
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Malaria and the Mason-Dixon
When push came to shove, it was a microscopic virus that would draw the frontiers of a nation, and help to decide the life and livelihood of millions upon millions of the Americans who came to live there.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

