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Marcus Alonzo HANNA, Congress, OH (1837-1904)

Senate Years of Service: 1897-1904Party: RepublicanHANNA, Marcus Alonzo, (father of Ruth Hanna McCormick), a Senator from Ohio; born in New Lisbon (now Lisbon), Columbiana County, Ohio,…

American History 101?

Compare your wits with the nation's best students by David Johnson Test ConditionsThe following test was given to a random sampling of 566 college seniors. Only one student answered all 34…

Geraldine Ferraro Biography

First woman to run on a major party presidential ticket in the United StatesBorn: 8/26/1935Birthplace: Newburgh, NYDied: 3/26/2011 (Boston, MA) Geraldine…

Determining the Sex of Offspring

The Question: My wife and I have argued this, and I've had trouble finding the answer. Which sex carries the genes to determine the sex of the offspring...…

The Lusitania

Sunk by German forces, the fated Cunard Liner contributed to anti-German sentiment before WWI Source: The Columbia Encyclopedia, Fifth Edition Copyright © 1993, Columbia University Press.…

Mosquito and Tick-Borne Diseases: Introduction

IntroductionMosquito and Tick-Borne DiseasesIntroductionYellow FeverDengueWest Nile EncephalitisRocky Mountain Spotted FeverLyme DiseaseMosquitoes serve as vectors, or carriers, of the malaria…

Classical Mythology: Love and Death

Love and DeathClassical MythologyThe Labors of HeraclesTraining a HeroBeastly Chores: The First Four LaborsEven More Beastly Chores: The Second Four LaborsThe Far Corners of the Earth: The Final Four…

March 2009 Current Events: World News

U.S. News | Business/Science News Here are the key events in world news for the month of March, 2009. President of Guinea-Bissau Killed (March 2): President João Bernardo…

DK Science: Bipedal Herbivores

Internal anatomyExternal anatomyToothless beak and cheek teethHerbivore teethSome bipedal herbivoresAs well as the giant plant-eaters, there were several other groups of smaller herbivores,…

DK Science: Horned & Armoured

Internal anatomyExternal anatomyCeratopsian hornsAnkylosaur scutesStegosaur platesSome armoured dinosaursThree major groups of plant-eating dinosaurs were well equipped to defend themselves – some…