WASHINGTON (AP) — To celebrate D.C. Emancipation Day, Washington’s Lincoln restaurant is donating a portion of its sales to support President Lincoln’s cottage.

On Tuesday, the restaurant will donate 20 percent of its sales to the historic site. Restaurant owner Alan Popovsky says President Abraham Lincoln rode past the site of the eatery every day on his way to the White House. That’s one reason why he wanted to support the cottage.

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Lincoln lived at the cottage for more than a quarter of his presidency to escape hot summers at the White House.

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On April 16, 1862, Lincoln signed the Compensated Emancipation Act, which legally ended slavery in the District of Columbia. As a result, 3,100 slaves were freed.

Shortly after the D.C. emancipation, Lincoln began developing the Emancipation Proclamation at the cottage.

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