Major Mathematician - John Edensor Littlewood (1885-1977)- Littlewood was born in 1885. During his career he wrote numerous articles together with Godfrey Harold Hardy on the Waring problem. He worked on the Riemann hypothesis. This states that neither the Riemann zeta function nor any Dirichlet L series has a zero with real part greater than 1/2. Furthermore, it created the 4/3 inequality, which states that some two-measures are finite. However, he is best known for his Prime Number Theorem, which explains how prime numbers are distributed among the rest of the integers. Thanks to his great discoveries, Littlewood won the Smith Prize in 1905 and the Copley Medal in 1958. Major Scientist - Dmitri Mendeleev (1834-1907) - Mendeleev was born in 1834. He graduated in St. Petersburg before moving to Heidelberg to carry out his laboratory. He then returned to St. Petersburg and became a professor. In 1860 he began his work on the periodic table. He organized the elements based on their atomic mass. When he saw a gap in the table he left space, predicting that new elements would be discovered. Thanks to this important table, Mendeleev was awarded the Davy and Copley medal of the Royal Society. Spanish History - The Spanish-American War (April 25, 1898 - December 10, 1898) - Cuba fought for six years for independence from Spain using guerrilla tactics. For this reason, in February 1896, Spanish General Valeriano Weyler moved Cubans from their homes to areas heavily guarded by the Spanish. As a result, President Cleveland decided he wanted to get involved in the war. When the Spanish destroyed an American ship they immediately began to rally troops. For ten weeks Cuba, the Philippines, Puerto Rico, and the United States fought against Spain. In December... middle of paper... When the Model T was created, Ford stopped selling the Model As but they eventually redesigned it and sold it again. The Model A was the beginning of a great American company and was a very important invention in history. Special Event - Discovery of Neptune (September 23, 1846) - Neptune is the eighth planet of our solar system and sometimes the ninth. As an effect of Pluto's orbit, Pluto sometimes passes in front of Neptune for a couple of years. In 1613 Galileo saw Neptune and predicted that it was just a star. In 1845, Urbain Jean Joseph Le Verrier and John Couch Adams mathematically predicted the position of Neptune. Then, Le Verrier asked Johann Gottfried Galle and Heinrich Louis d'Arrest to search for the planet. After searching for only a couple of minutes, the men found Neptune. Neptune was the first planet to be found based on mathematical predictions.