Jerzy Zdrada Jerzy Zdrada Jerzy Zdrada (1936–present) is a Polish historian and politician. He is a member of the Polish Academy of Sciences and a professor at the Jagiellonian University since 1993. As a historian, he specializes in the history of Poland in the 19th century. He was an activist of the Solidarity movement in communist Poland. After the fall of communism, he was a member of the Democratic Union (UD) and Freedom Union (UW) parties. He was a deputy to the Polish parliament (Sejm) from 1989 to 1997. Afterwards, he was a Deputy Minister in the cabinet of Jerzy Buzek (1997–2001).
Prime Minister of Australia time to time Prime Ministers are required to leave the country on government business and a deputy acts in their place during that time. In the days before jet aircraft, such absences could be for extended periods. For example, William Watt was acting Prime Minister for 16 months, from April 1918 until August 1919, when Prime Minister Billy Hughes was away at the Paris Peace Conference, and Senator George Pearce was acting Prime Minister for more than seven months in 1916. An acting Prime Minister is also appointed when the prime minister takes leave. The Deputy Prime Minister most commonly