If Christianity is about Christ, why is the Old Testament included in the Bible?

Thomas Hobbes founded a theory of modern state, as he looked for a way to stop religious wars that afflicted Europe and England, in particular, in the 16th and 17th centuries. He based his theory on the fear of death that is common for most people.

He slept on the chest and was wearing poor clothes – Nikolai Fedorov was an unassuming librarian and a mentor of Tsiolkovsky, a father of astronautics, as well as Tolstoy and Dostoevsky, big writers.

Blaise Pascal (1623– 1662) believed that we are great when we are aware of our insignificance.

In the 19th century, two names stand out when we think of philosophy in Russia – Alexander Herzen and Konstantin Leontiev. While Herzen was the father of Russian socialism, Leontiev was a conservative whose writings can explain how the idea of the decaying West came into being in Russia.

Where did the catastrophe of the 14 century come from? Was the Renaissance delayed?

In  his treatise of 9 books, Herodotus described many peoples, countries, and events of the 5th century BC. He titled his work "History", which gave the name to a scholarly discipline.

After the first world war, the Ottoman Empire collapsed and the Middle East emerged anew. What was the role of secular Arab nationalism in it?