The text discusses the Treaty of Tilsit and its consequences, the Continental System, and wars of the Russian Empire. It also includes biographical information about Pyotr Kotlyarevsky. Please extract the key events and outcomes related to the Treaty of Tilsit and the Continental System.

Treaty of Tilsit and its Consequences:

• The Treaty of Tilsit was signed in 1807.
• As a result of the treaty, Russia:
  • Recognized Napoleon's conquests.
  • Joined the Continental Blockade against England.
  • Pledged to assist France in wars.
  • Annexed the region of Belostok.
  • Gained freedom of action in the Baltic (against Sweden) and the Balkans and Caucasus (against the Ottoman Empire).

Continental System:

• A system of economic and political measures imposed by Napoleon I from 1806-1814.
• It involved prohibiting trade with Great Britain for all countries dependent on or allied with France.
• This included closing European ports to British ships and confiscating British goods.

Consequences of the Treaty of Tilsit for Russia:

• Russia's position became unstable.
• Russia suffered economic damage.
• Russia's relations with the USA improved.
• The authority of Alexander I declined.