Answer:
To do something that can't be reversed
Explanation:
Lyndon B. Johnson/Died
January 22, 1973
Date of birth: August 27, 1908
The radio spread news quicker across different regions in the US.
At the insistence of the powerful Russian Orthodox Church, the Kremlin is trying to determine if the remains of Czar Nicholas and his family are who there are said to be – despite little doubt among historians