He grouped it with H, Li, Na, K, Rb, Cs, Fr.
I read somewhere that he also grouped it with copper, gold, and silver. (Metallic Elements).
During 1989 and 1990, the Berlin Wall came down, borders opened, and free elections ousted Communist regimes everywhere in eastern Europe. In late 1991 the Soviet Union itself dissolved into its component republics. With stunning speed, the Iron Curtain was lifted and the Cold War came to an end.
https://americanhistory.si.edu › history
Monotheism was relatively unique in the ancient world. Most ancient societies were polytheistic- they believe in and worshiped multiple gods.
Help overthrow communist governments.
A note that two communist states were in the United Nations after ww2, so it would be counterproductive to overthrow them.