Did United States of America and Soviet Union (USSR) exist in the same era?

Yes, the two civilizations both existed around 1922 CE.

Which lasted longer, United States of America or Soviet Union (USSR)?

United States of America lasted longer (250 years).

United States of America: Kuzey Amerika; Soviet Union (USSR): Avrasya

United States of America (1776 CE – present) and Soviet Union (USSR) (1922 CE – 1991 CE) lived in the same era.

	United States of America	Soviet Union (USSR)
Period	1776 CE – present	1922 CE – 1991 CE
Duration	250 years	69 years
Region	Kuzey Amerika	Avrasya
Capital	Washington D.C.	Moskova
Type	Republic	Federation
Government	Federal Başkanlık Cumhuriyeti	Tek Parti Sosyalist Cumhuriyet
Religion	Hristiyanlık (çeşitli)	Devlet ateizmi
Language	İngilizce	Rusça
Peak population	331,000,000	293,000,000
Rulers	20	8

The world's first modern democratic republic. With its superpower status, the most influential state of the 20th and 21st centuries.

The first socialist superpower in history. The rival of the United States during the Cold War. It initiated the space race.

Did United States of America and Soviet Union (USSR) exist in the same era?: Yes, the two civilizations both existed around 1922 CE.
Which lasted longer, United States of America or Soviet Union (USSR)?: United States of America lasted longer (250 years).
Which regions did United States of America and Soviet Union (USSR) rule?: United States of America: Kuzey Amerika; Soviet Union (USSR): Avrasya