Answer:
Explanation:
The unification of Romania and Moldova (Romanian: Unirea Republicii Moldova cu România) is a popular concept in the two countries beginning with the late 1980s, during the collapse of communism. The Romanian Revolution in 1989 and the independence of Moldova in 1991
In history such as World History? You should be able to distinguish the trends and differences in different periods say "Period 1 vs. Period 2" where each period represents a different range of years (in AP World History I learned it with 6 periods but it varies from year to year of when it is taught)