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Many theories have been put forth to explain the mysterious disappearance of the dinosaurs. Did they get too large to survive? Did the climate change too abruptly? Did an asteroid collide with Earth? This inviting book explains some of the theories and examines why they've been accepted or rejected.
To some, Easter Island is just a tiny bit of volcanic rock in the middle of the Pacific Ocean. To others, it is the source of one of mankind's greatest mysteries. Easter Island is home to hundreds of giant statues that people built centuries ago, but no one knows why. The statues are amazing. Some of them wear headdresses made from red stone. Others have large pieces of coral for eyes. Almost as mysterious as the statues themselves is the fact
...Late in 1945, five U.S. Navy torpedo bombers took off from Fort Lauderdale, Florida, on a routine training mission. Soon the mission became anything but routine. Flight 19, as it was known, became hopelessly lost. Then the planes vanished. No one ever found a trace of them or the 14 men who had been aboard. Starting five years later, people began to notice a pattern of disappearances of ships and airplanes similar to Flight 19. These disappearances
...In the middle of the fourteenth century, a terrible and mysterious plague swept across Europe and Asia. One in every three Europeans died during the five years that it terrified the continent. People tried all sorts of ways to avoid catching the Black Death. They carried flowers, burned incense, fired cannons, and rang church bells. They nailed whole families in their homes to try to keep the disease from spreading. Nothing seemed to help. The
...In 1918, the deadliest virus in human history struck worldwide with hardly any warning. A victim of the Spanish flu could wake up healthy and fall down dead the same day. In the United States, so many people fell ill that schools and churches closed. There werent enough healthy doctors and nurses to care for the sick, or enough healthy gravediggers to bury the dead. When U.S. troops joined World War I that year, they couldnt have imagined that
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