If you are young and not a communist, your heart is not in the right place; if you are old and still a communist, your mind is not in the right place.” This popular saying captures the disillusionment of those who embraced communism in their youth but later abandoned it. Yet, for much of the 20th century, communism was more than an ideology for millions across the world. It was the promise of a more equal society, free from the exploitation of the poor by the rich.