justinian reigned for 38 years and died at a very old age.e time. his era became the true heyday of the byzantine empire. empire, never again was it in a state of such power and greatness. on august 1, 1914, germany declared war on our country, so the russian empire entered the first world war, from which it emerged not only with heavy losses, but as a completely different state, like three other empires: austro-hungarian, german and ottoman ceased to exist. a completely different phase in the development of the world has begun. in russia. the collapse occurred most painfully, under the pressure of the revolutionary-minded masses, the three-hundred-year-old house of the romanovs collapsed, and the civil war dragged on for years, millions more people died, the economy was severely undermined, cultural and religious life radically changed over a vast territory, and the first world war had an equally strong impact on germany, the losing side, also went through a revolution and established parliamentary democracy, known as the weimar republic, wa