KnowthKnowth is the site of a Neolithic passage grave in the valley of Ireland's River Boyne. Built approximately 5,000 years ago, the site consists of a large mound containing two passages leading to burial chambers. This is surrounded by 17 smaller satellite tombs. Knowth contains more than a third of all the megalithic art in Western Europe, including hundreds of stones decorated with spirals, crescents, and other shapes. Why do some believe that Knowth exhibits evidence of astronomical alignment? More... Discuss

I Love Lucy Premieres (1951)In 1951, Lucille Ball became one of the first movie stars—and the first woman—to headline a television series. The prototypical situation comedy, I Love Lucy became a spectacular success, showcasing Ball's comic energy, flair for slapstick, and chemistry with her co-star and real-life husband, Desi Arnaz, as they portrayed the zany middle-class couple Lucy and Ricky Ricardo. The program is still syndicated today. What word was once prohibited from being used on I Love Lucy? More... Discuss

Virgil (70 BCE)Virgil was a Roman poet and the author of the Eclogues, the Georgics, and the Aeneid, widely regarded as one of the greatest long poems in world literature. The Aeneid, Rome's national epic, tells the legendary story of the Trojan hero Aeneas, whose descendants become the founders of Rome. What later poet portrayed Virgil as the guide to Hell in his great literary classic The Divine Comedy? More... Discuss

Study Links Jaundice and AutismA new study suggests that jaundiced newborns have a greater risk of developing autism than other babies, though how the two conditions might be related remains unclear. While it is possible that brain development near birth might be most vulnerable to the high bilirubin levels that cause jaundice, is it also possible that children genetically predisposed to autism are also more vulnerable to jaundice. Previous studies investigating a possible link between the two conditions have yielded conflicting results. More ... Discuss

Match each word in the left column with its synonym on the right. When finished, click Answer to see the results. Good luck!