The dissolution of the Soviet Uniona occurred on 26 December 1991.
Hope this helps :D
I would say that the best tools for establishing and preserving freedom are the Constitution, courts, and legislature in general.
The Constitution is a set of laws that all people within one country should follow and it is a document which guarantees their freedom and equality. Courts and other laws do the same thing as well.
The privy council is descended from the Curia Regis, which was made up of the king’s tenants in chief, household officials, and other advisers.
I would say this part...
"Secure the blessings of liberty, to ourselves and our prosperity"