The Labour Party's electoral victory means that Joseph Muscat, 39 becomes Malta's second youngest ever prime minister, and the youngest since Dom Mintoff was first elected in 1955.

The youngest ever prime minister was Sir Ugo Mifsud, co-leader of the Nationalist Party, who was 35 when he first became prime minister in 1924.

This was the first time that Joseph Muscat was a general election candidate, but in 2004 he became the first Labour candidate to be elected to the European Parliament, and he served there until 2008, when he was elected to succeed Alfred Sant at the helm of the Labour Party.

Married to Michelle and with two young twin daughters, Dr Muscat was educated at St Aloysius College and was a a Super One journalist and a financial adviser before taking his seat in the European Parliament.

As PL leader, he moved the party to the centre, opening it up to sectors which previously tended to support the Nationalist Party. His extensive reform even included changing the party's formal name and emblem.

The following is a list of Malta's prime minister since self-government was granted in 1921:

Joseph Howard

Born in Valletta in 1862, Mr Howard led Malta's first government between October 26, 1921 and October 13, 1923. He was known for his sense of tolerance and administrative experience. The King of England honoured him with an OBE (Officer of the British Empire). He died on May 20, 1925.

Francesco Buhagiar

Born in Qrendi in 1877, he joined the Party of Panzavecchia and was elected in two legislatures, in 1921 and 1924, holding three different portfolios during those years. He was prime minister between October 1923 and September 1924. After resigning he went on to become a judge. He died on June 27, 1934.

Sir Ugo Mifsud

Born in Valletta in 1889. At 35, he became the youngest prime minister of the British Empire between 1924 and 1927. He was opposition leader between 1927 and 1930 and then re-elected as prime minister between June 1932 and November 1933. In 1926, together with Nerik Mizzi, he led the Nationalist Party until he died on February 11, 1942.

Lord Gerald Strickland

Born in Valletta in 1861, Sir Gerald was the leader of the Constitutional Party. In 1917, after holding the post of Governor of Western Australia and New South Wales, he returned to Malta and set up the Anglo-Maltese Party and later joined the Maltese Constitutional Party. He was opposition leader in three legislatures between 1921 - 1927 and served as prime minister between August 1927 and June 1930. He survived an assassination attempt and died on August 22, 1940 at Villa Bologna.

Sir Paul Boffa

Born in Vittoriosa in June 1890, he served with the Royal Army Medical Corps in World War I. His political career started in 1923 when he joined the Malta Labour Party and later became its leader in 1928. He became the first Labour prime minister when the party came to power between 1947 - 1950. A party split saw him removed from the post as leader in 1949 and in 1950 he set up the Malta Workers' Party which subsequently governed in coalition with the Nationalist Party. He retired from politics in 1955 and died on July 6, 1962.

Nerik Mizzi

Born in Valletta in September 1885, Mr Mizzi studied law in Italy and excelled in journalism. In November 1915, he ran as candidate for Gozo with the backing of the Comitato Patriottico and garnered tremendous support. In 1917, he was arrested and accused of alleged subversive publications. He was condemned to one year in prison but was released three months later. In 1921 he set up the Partito Democratico Nazionalista and in 1926 his party formed a coalition with the Unione Politica Maltese to become the Nationalist Party. In 1940 he was arrested, interned and deported to Uganda because he was perceived as being pro-Italy. He returned from Uganda in March 1945 and returned to politics with earnest. The Nationalist Party was voted to power in 1950 and he reached the pinnacle of his career when he was appointed prime minister. He died three months later on December 20, 1950.

Gorg Borg Olivier

Born in July 1911, Dr Borg Olivier was prime minister of Malta during five legislatures. He joined the Nationalist Party in 1939 and became its leader while Nerik Mizzi was interned in Uganda. When Nerik Mizzi died shortly after being voted to office, Dr Borg Olivier served as prime minister between 1950 - 1955. In 1962, the party was re-elected to power and he was back at the helm between 1962 - 1966. During this legislature he worked to achieve the island's independence from the British, achieving this goal in 1964. He became the first prime minister of an independent Malta between 1966 - 1971. He retired as leader of the PN in 1977 after 27 years at the helm. He died on October 29, 1980.

Dom Mintoff

Born in Cospicua in August 1916, he was prime minister during four legislatures. He became general secretary of the Malta Labour Party in 1939 and later became deputy leader and its leader in 1949. In 1955, the MLP was voted to power and he governed until 1958. He was prime minister during another three legislatures: 1971-1976, 1976-1981 and 1981-1984, after which he resigned both as prime minister and party leader. He stayed on as MP until 1998 and passed away last year.

Karmenu Mifsud Bonnici

Born in Cospicua in July 1933, Dr Mifsud Bonnici started his political career in 1980 when Dom Mintoff proposed him as deputy leader of the MLP. In 1982, the party approved a motion passed by Mr Mintoff to succeed him as party leader. He was co-opted to parliament in May of that year and became prime minister between 1984 and 1987. When his party lost the election in 1992 he resigned from his post as party leader.

Eddie Fenech Adami

Born in February 1934, Dr Fenech Adami started his political career in 1961 when he became a member of the PN's executive committee. In 1975, he was assistant general secretary and in the same year he was elected chairman of the general council and administrative council. He had an important say in the party's reorganisation during the 1970s. He contested the general elections of 1962 and 1966. In 1969, he was co-opted after the death of Nationalist MP Gorg Caruana. In 1977 he was elected party leader after Dr Borg Olivier retired. In the 1987 election, the PN won the absolute majority and he led the country during that legislature until 1992 and again between 1992 - 1996. He served as prime minister again in the 1998-2003 legislature. When the party was re-elected in 2003, he signed the Accession Treaty taking Malta into the European Union and resigned a year later. He later served as President.

Alfred Sant

Born in 1948, Dr Sant started his career as the chairman of the MLP information department in 1982, taking over as party president from 1984 - 1988. He contested the general election of 1987 and was co-opted following the death of Joseph Sciberras. He successfully contested the 1992 election and took over as leader of the party following the resignation of Karmenu Mifsud Bonnici. He won the 1996 election and served as prime minister for two years, until he was forced by former prime minister Dom Mintoff to call early election. He lost the elections of 1998, 2003 and 2008, when he resigned. He did not contest this general election but intends to be a candidate for the European Parliament election next year.

Lawrence Gonzi

Lawrence Gonzi entered Parliament as Speaker in 1992 and was first elected in 1996, serving as shadow minister for social policy and general secretary of the PN. After 1998 he became deputy prime minister and minister for social policy. He won the election to succeed Eddie Fenech Adami in 2004 and was prime minister when Malta joined the EU. He subsequently led the PN to a narrow victory in the 2008 general election.