text: It was called Lake Rezaiyeh in the early 1930s after Reza Shah Pahlavi , but the lake was renamed ` Urmia ' in the late 1970s .
simplified: In the early years of the 20th century , it was named Rezaiyeh Lake after the name of Reza Pahlavi , the king of Iran . After the Islamic Revolution , its name was changed back to Urmia Lake .