Wwi, Sergeant Stubby, American War Dog
Science Source
Viking Blacksmiths Forge The Sword
Photo Researchers
Wwi, Sergeant Stubby, American War Dog #1
Science Source
Simón Bolívar, Venezuelan Political #3
Photo Researchers
Three Gods, Founders Of Chinese Medicine
Wellcome Images
Toussaint Louverture, Haitian General #3
Science Source
Yamato Takeru, Japanese Folk Hero
Science Source
Horse-drawn Fire Truck, C. 1890s-1900s
H. Armstrong Roberts/ClassicStock
George W Carver
Science Source
Achilles Tending Patroclus Wounds
Science Source
Pancho Villa, Mexican Revolutionary
Science Source
Marquis De Lafayette, French Military #3
Science Source
David Livingstone, Scottish Explorer
British Library
Jacques De Molay, Knights Templar Grand
Science Source
Yuri Gagarin, Soviet Cosmonaut
Science Source
Harriet Tubman, American Abolitionist #3
Photo Researchers
Harriet Tubman, American Abolitionist #1
Photo Researchers
Clara Barton, American Humanitarian #2
Science Source
Wwii, Winston Churchill, U.k. Prime
Science Source
Ulysses S. Grant, 18th American #1
Photo Researchers
Shennong, Chinese God Of Medicine
Wellcome Images
T.e. Lawrence, Wwi British Officer
Science Source
Calamity Jane At Wild Bill Hickoks
Science Source
Theseus Mosaic, 4th Century
Science Source
Davy Crockett, American Folk Hero #1
Photo Researchers
Davy Crockett, American Folk Hero #2
Photo Researchers
Hercules, Mythical Greco-roman Hero
Science Source
Kit Carson American Frontiersman
LOC Science Source
Alfred The Great, King Of Wessex
Photo Researchers
Emiliano Zapata
Science Source
Gilgamesh, King Of Uruk
Photo Researchers
Ulysses S. Grant, 18th American #2
Photo Researchers
Stonewall Jackson, Confederate General #4
Photo Researchers
Washingtons Farewell To His Officers
Photo Researchers
George Washington At Valley Forge
Science Source
T.e. Lawrence, British Officer
Science Source
George W. Carver, American Botanist #1
Science Source
Ulysses S. Grant, 18th American
Photo Researchers
Harriet Tubman, American Abolitionist
Photo Researchers
Ulysses S. Grant, 18th American #5
Photo Researchers
Chinese Deities Of Medicine
Wellcome Images
Vlad The Impaler, Prince Of Wallachia
Science Source
Amelia Earhart, American Aviatrix
Science Source
Toussaint Louverture, The Black Napoleon
Science Source
Muhammad Ali, The Greatest
Omikron
Heros Door-opening Apparatus
Photo Researchers
Hero Of Alexandria
Science Source
Heros Fountain, Hydraulics
Science Source
Heros Engine, First Recorded Steam
Science Source
Hero Of Alexandria, Ancient Greek
Photo Researchers
Heros Miraculous Altar, For Opening
Photo Researchers
Clara Barton, American Humanitarian #3
Science Source
Alfred The Great, Legend Of The Cakes
Photo Researchers
Robert E. Lee, Confederate Army #2
Photo Researchers
Davy Crocketts Almanack, 1836
Science Source
Gilgamesh, King Of Uruk #1
Photo Researchers
Harriet Tubman, African-american
Photo Researchers
Henry Knox #2
Photo Researchers
Martin Luther King, Jr
Photo Researchers
George Washington On His Death Bed
Photo Researchers
Saladin, Sultan Of Egypt And Syria
Photo Researchers
George W. Carver, African-american #3
Science Source
Calamity Jane, American Frontierswoman
Photo Researchers
Crispus Attucks, African-american War #1
Science Source
Surrender Of Lord Cornwallis, 1781
Photo Researchers
Inauguration Of George Washington, 1789
Photo Researchers
Washington Taking Command Of American
Photo Researchers
Zachary Taylor Campaign Poster
Photo Researchers
Minotaur, Legendary Creature
Photo Researchers
Harriet Tubman, American Abolitionist #4
Photo Researchers
Battle Of The Monongahela, 1755
Science Source
Third Crusade, King Richard Battles
British Library