Articles of the world

Leo Tolstoy Leo Tolstoy Leo Tolstoy, also known as Count Lev Nikolayevich Tolstoy, was a Russian writer and philosopher, widely regarded as one of the greatest novelists of all time. He was born on September 9, 1828, in Yasnaya Polyana, Russia, and died on November 20, 1910. Tolstoy is best known for his epic novels, which include: War and Peace (1869): This novel is considered one of the greatest works of fiction ever written. It chronicles the French invasion of Russia and the impact of the Napoleonic era on Russian society through the lives of several aristocratic families. Anna Karenina (1877): Another masterpiece, "Anna Karenina" explores themes of love, infidelity, and morality in the context of Russian aristocratic society. The novel is renowned for its psychological depth and insight into the human condition. Tolstoy's literary works extended beyond novels to include philosophical and religious writings. Later in life, he underwent a profound spiritual and moral t...

  Mendeleev Dmitri Mendeleev Dmitri Ivanovich Mendeleev was a Russian chemist who is best known for his creation of the periodic table of elements. Here are some key points about Dmitri Mendeleev: Early Life and Education: Mendeleev was born on February 8, 1834, in Tobolsk, Siberia, Russia. He came from a large family and lost his father at a young age. He studied at the Main Pedagogical Institute in Saint Petersburg, graduating in 1855. Career and Research: After completing his education, Mendeleev worked as a teacher and published several textbooks. In the early 1860s, he began his work on organizing the known elements. He realized that arranging elements by atomic mass revealed a periodic pattern of properties. In 1869, Mendeleev published the first version of his periodic table, organizing the elements based on atomic mass and grouping them with similar properties. Periodic Table: Mendeleev left gaps in his table for elements that were yet to be discovered. He even predicted th...