Passage: Evin Prison was constructed in 1972 under the reign of Mohammad Reza Pahlavi. It is located at the foot of the Alborz mountains on the former home of Ziaeddin Tabatabaee, who briefly served as prime minister in the 1920s. The grounds of the prison included an execution yard, courtroom, and separate blocks for common criminals and female inmates. It was originally operated by the Shah's security and intelligence service, SAVAK. It quickly supplanted Qasr Prison as the country's "Bastille". It was initially designed to house 320 inmates—20 in solitary cells and 300 in two large communal blocks— and was expanded to hold more than 1,500 prisoners—including 100 solitary cells for political prisoners—by 1977.Under the Islamic Republic, the prison population was again expanded to 15,000 inmates. According to scholar Ervand Abrahamian: "In theory, Evin was a detention center for those awaiting trial", after which the prisoners would be transferred to another prison, either Qezel Hesar or Gohardasht Prison. "In reality, Evin served as a regular prison as many waited years before being brought to trial". Prominent prisoners often served their entire sentences in Evin. Executions took place at Evin. Following the Islamic Revolution, Mohammad Kachouyi was made warden of Evin. After his assassination in June 1981, Asadollah Lajevardi, the chief prosecutor of Tehran, served as warden until 1985. In 1998, the People's Mujahedin of Iran assassinated Lajevardi. The prison is located in a residential and commercial area known as Evin, next to the Saadat Abad district. There is a large park area with a popular upscale teahouse and restaurant located immediately next to it.  Photography in front of and around the prison is illegal. Prisoners from Evin and Ghezel Hesar prison are to be transferred eventually to the Central Prison of Tehran, also known as Fashafaviye or Fashafoyeh, which is under construction as of August 2015.

Question: When did Ziaeddin Tabatabee Serve as prime Minister?
the 1920s.