Disasters and breakthroughs in the progress of civilization capture our attention and prepare us to understand our world in new ways.
One way a tsunami can develop is when the energy from an earthquake below the ocean is transferred to the ocean surface above the quake's epicenter. This brief animation depicts that reaction. NOAA tells us more about how the theory of plate tectonics is involved in the chain-of-events: Major tsunamis are produced by large earthquakes and frequently occur in the Pacific where dense oceanic plates slide under the lighter continental plates. When these plates fracture, they provide a vertical movement of the sea floor that allows a quick and efficient transfer of energy from the solid earth to the ocean. Disasters often result from earthquake-caused tsunamis.
A link to numerous primary resources, about U.S. Presidential Inaugurations, at Awesome Stories.
A lesson plan to make your school's elections presidential.
Interesting information about he wives of the President during the event.
A list of facts and events that make the Presidential Inauguration a unique event.
An explanation of what the Executive Branch is and what it does.
Henry Bliss Northup was the man who rescued Solomon Northup - whose slave name was ''Platt Hamilton'' - from slavery.
The political campaigns, leading-up to the presidential election of 1884, included lots of arguing politicians.
The battle of Cowpens (January 17, 1781) occurred in two phases.
The Golden Gate Strait separates the Pacific Ocean from San Francisco Bay. Today, the Golden Gate Bridge spans this narrow water passage.
After South Carolina rejoined the Union, African-American males could vote. More blacks were involved in government in South Carolina than in any othe...
Although the Library of Congress has a treasure trove of pictures, documents, audio/visual clips and other primary and secondary sources, it is not ea...
On the 8th of December, 1941 - the day after Pearl Harbor was bombed - Americans received their up-to-date news from the radio.
Churchill tried repeatedly to convince FDR to enter the war.
Winston Churchill became Prime Minister on the 10th of May, 1940.
On the 4th of June, 1940, Winston Churchill addressed Parliament.
When Gavrilo Princip killed Franz Ferdinand, he also pulled the trigger on consequences still felt in the 21st century.
At the beginning of WWI, neutral Americans sent food supplies to feed European troops and people. Then Germany invaded Belgium and sank Lusitania.
Before the U.S. joined WWI, some prominent Americans spoke in favor of aiding the Allies while others strongly opposed U.S. involvement.
Before WWI, several European heads of state were close relatives who couldn’t work-out their differences before dragging the world into war.
Kaiser Wilhelm first said he had “knowledge” that French soldiers were preparing to enter Belgium, but he changed that word to “news.”
What are the factors leading to Napoleon's defeat at Waterloo on June 18, 1815?
It's June 13, 1935 and Jim Braddock - a 10 to 1 underdog - stuns boxing fans everywhere when he defeats the reigning champion, Max Baer.
Making her point by breaking bottles of alcoholic beverages, Carry Nation becomes a temperance leader.
Gone with the Wind became one of the best-selling novels and movies of all time.
Margaret Mitchell named Scarlett O'Hara after looking through books of Irish literature.
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