black carbon ink

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Washington DC.,USA, April 26, 1989. Supporters for and against legal abortion face off during a protest outside the United States Supreme Court Building during Webster V Health Services

Pro and Con: Abortion

United States Electoral College votes by state

How Many Electoral College Votes Does Each U.S. State Have?

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

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Globe South America, map

What’s the Difference Between Hispanic and Latino?

United States elections portal page linking to each election interactive

A History of U.S. Presidential Elections in Maps

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

black carbon ink

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use in pen drawing

In pen drawing
One was black carbon ink, made from extremely fine particles of the soot of burnt oils or resins in a solution of glue or gum arabic. The finest type of black carbon ink was known as Chinese ink and was the prototype of the modern black India…
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