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The FDA has approved a sunscreen that blocks the type of ultraviolet radiation linked to some cancers. Anthelios SX contains ecamsule, a compound that helps protect against UVA radiation, which is believed to be linked to malignant melanoma. The sunscreen ingredients currently sold in the US block UVB rays, which are mainly responsible for causing sunburns. Anthelios SX is made by L'Oreal and will be distributed in the US by LaRoche-Posay.

DEFINITION: (noun) A person who is bound to the land and owned by the feudal lord. SYNONYMS: helot, serf. USAGE: The novel told the story of a young villein who fell in love with the daughter of his feudal lord.

Afonso I was the first King of Portugal. He spent his life in almost ceaseless fighting against the kings of León and Castile. In 1139, after successfully defeating the Moors in the battle of Ourique, his soldiers proclaimed him king. In 1147, he took the city of Santarém by surprise attack and captured Lisbon as well. In 1143, Afonso placed his lands under papal protection and secured Castilian recognition of his title, which was confirmed by which pope?

Henry the IV of France was the first of the Bourbon kings of France, reigning from 1589 until his death. A Protestant, Henry was involved in the Wars of Religion before his accession to the throne. He then converted to Catholicism, allegedly explaining his pragmatic philosophy with the statement, "Paris is worth a mass." He signed the Edict of Nantes granting political rights to Protestants and ruled as one of the most popular French kings. Who assassinated him in 1610?

Rossini was an Italian musical composer who wrote more than 30 operas as well as sacred music and chamber music. He was a master of the opera buffa, an Italian comic opera of the 18th century, and in 1816, he wrote his masterpiece, The Barber of Seville, which resounds with his brilliant arias, ensemble numbers, and famous crescendos. The finale of the overture of which one of Rossini's operas served as the theme song for the American show The Lone Ranger?