Ash heap of history
The phrase "ash heap of history" literarily speaking refers to ghost towns or artifacts that have lost their relevance.
Visiting Rome in the 14th century, Italian writer Petrarch called the city "a rubbish heap of history".
A notable usage was that of the Russian Bolshevik Leon Trotsky referring to the Mensheviks: "Go where you belong from now on – into the dustbin of history!" as the Menshevik faction walked out of the All-Russian Congress of Soviets on 25 October 1917 in Petrograd. In a speech to the British House of Commons, U.S. President Ronald Reagan later responded that "freedom and democracy will leave Marxism and Leninism on the ash heap of history".
