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Table of Contents

Introduction References & Edit History Related Topics

Images & Videos

intervals from middle C

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Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

Hemp (Cannabis sativa).

9 Mind-Altering Plants

New Zealand. Political/Physical map. Includes locator.

Where Is “Old Zealand”?

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Photos and Videos

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Topics

comma octave tritone śruti semitone fourth fifth third foundation tone quarter tone tuning and temperament mode bass

Key People

Pythagoras

Greek philosopher and mathematician

Quiz

Young girl wearing a demin jacket playing the trumpet (child, musical instruments, Asian ethnicity)

Sound Check: Musical Vocabulary Quiz