Simplify the following text for a Grade 7 native English-speaking person.
Original: The union of Romania with Bukovina was ratified in 1919 in the Treaty of Saint Germain , and with Bessarabia in 1920 by the Treaty of Paris .
Simplified: Romania and Bukovina were joined together in 1919 as a result of the Treaty of Saint Germain . Bessarabia joined with Romania in 1920 when the Treaty of Paris was signed .