据Wiki,第一个”人民共和国“是布尔什维克1917年在乌克兰东部建立的“乌克兰人民共和国”
https://en.wikipedia.org/wiki/People%27s_republic
People's republic
The current officially Marxist-Leninist states that use the term people's republic in their full names include:
People's Republic of China (since 1949)
Lao People's Democratic Republic (since 1975)
Historical examples include:
People's Republic of Albania (1946–1976) and Socialist People's Republic of Albania (1976–1992)
People's Republic of Angola (1975–1992)
People's Republic of Benin (1975–1990)
Bukharan People's Soviet Republic (1920–1925)
People's Republic of Bulgaria (1946–1990)
People's Republic of the Congo (1969–1992)
People's Democratic Republic of Ethiopia (1987–1991)
Hungarian People's Republic (1949–1989)
People's Republic of Kampuchea (1979–1989)
Khorezm People's Soviet Republic (1920–1925)
Democratic People's Republic of Korea (1948–1992/2009)[a]
Mongolian People's Republic (1924–1992)
People's Republic of Mozambique (1975–1990)
Polish People's Republic (1944; 1947–1989)
Romanian People's Republic (1947–1965)
Tuvan People's Republic (1921–1944)
Ukrainian People's Republic of Soviets (1917–1918) (united into the Ukrainian Soviet Republic)
People's Democratic Republic of Yemen (1967–1990)
Federal People's Republic of Yugoslavia (1945–1963)