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The impeachment trial of Pres. Andrew Johnson, illustration from Frank Leslie's Illustrated Newspaper, March 28, 1868.

What If the President Is Impeached?

Flag of Bhutan

6 Small Kingdoms of the World

Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.

5 Remarkably Close U.S. Presidential Elections

Panama Canal infographic

Timeline and Map of the Panama Canal

Red Army (Soviet) soldiers in the Russian Revolution.

Russian Revolution Timeline

Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm

9 Noteworthy Bog Bodies (And What They Tell Us)

Malayan Leaf Frog - Megophrys nasuta

9 Animals That Look Like Leaves

sequence

mathematics

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analysis

In analysis: The limit of a sequence
…of the limit of a sequence was obtained.
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