* the first lasting from his election to his expulsion in favour of Sylvester III ( October 1032 – September 1044 )

When Pope Benedict IX was driven from Rome in September 1044, John, bishop of Sabina, was elected after fierce and protracted infighting.

In 1042 Melfi was chosen as the Norman capital, and in September of that year the Normans elected as their count William Iron-Arm, who was succeeded in turn by his brothers Drogo, Comes Normannorum totius Apuliæ e Calabriæ (" the Count of all Normans in Apulia and Calabria "), and Humphrey, who arrived about 1044.

* Hello and Goodbye by Athol Fugard ( RSC ) 5 August-27 September 1988 ( 1044 )

Ten years later ( 24 September 1856 ) the Swiss Federal Council voted them equal political rights with other Swiss citizens in that canton, as well as entire freedom of commerce ; but the opposition of the Christian population prevented the decision from being generally carried out.

Leon Trotsky at first supported the Mensheviks, but left them in September 1904 over their insistence on an alliance with Russian liberals and their opposition to a reconciliation with Lenin and the Bolsheviks.

Attlee remained opposition leader when war broke out in September 1939.

On September 5, 2005, the National Elections Board of Ethiopia released the final election results, which confirmed that the ruling Ethiopian People's Revolutionary Democratic Front retained its control of the government, but showed that opposition parties had increased their share of parliamentary seats, from 12 to 176.

On September 5, 2005, the National Elections Board of Ethiopia released the final election results in which confirmed that the ruling Ethiopian People's Revolutionary Democratic Front retained its control of the government, but showed that opposition parties had increased their share of parliamentary seats, from 12 to 176.

Despite anti-government demonstrations after the untimely death of an opposition leader, the first multiparty National Assembly elections in almost 30 years took place in September – October 1990, with the PDG garnering a large majority.

In September 2001 the opposition leader Alpha Condé was imprisoned for endangering state security, though he was pardoned 8 months later.

On September 28, 2009 an opposition demonstration was met by troops who fired on demonstrators and raped many women among them.

Ashcroft referred to American Library Association opposition to Section 215 as " hysteria " in two separate speeches given in September 2003.

Trotsky left the Mensheviks in September 1904 over their insistence on an alliance with Russian liberals and their opposition to a reconciliation with Lenin and the Bolsheviks.

On 16 September, the president nominated Yaovi Agboyibor of the Action Committee for Renewal ( CAR ) prime minister, snubbing the major opposition party Union of the Forces of Change ( UFC ) which in reaction refused to join the government.

The government of Uzbekistan has instead tightened its grip since independence ( September 1, 1991 ), cracking down increasingly on opposition groups.

On September 23, 2004 the university's board of governors voted unanimously to rename the institution Breton University, however the proposed name received opposition from a number of groups in the institution and local community over the removal of the word " Cape " from the proposed new name, thus the name Cape Breton University was adopted instead.

In the September 2006 presidential elections Saleh was challenged by a coalition of five leading opposition parties, the Joint Meeting Parties ( JMP ), which fronted the candidate Faisal bin Shamlan.

The Yemeni Army's 119th Brigade, which had defected to the opposition, launched a joint operation with 31st and 201st Brigades which were still loyal to Saleh and retook the city of Zanjibar on 10 September from Islamist militants who were exploiting the chaos in the country to expand their influence.

* September 28 – Israeli opposition leader Ariel Sharon visits the Temple Mount, protected by a several-hundred-strong Israeli police force.

* September 20 – Leader of Pakistani opposition party Pakistan Peoples Party Murtaza Bhutto is killed during a gun battle with police.

* September 17 – Two Kurdish opposition leaders are assassinated by the Iranian Kazem Darabi and the Lebanese Abbas Rhayel.

The engagement began on 19 September 1944, with a probe by the U. S. 60th Infantry Regiment that entered the Hürtgen Forest but was beaten back by the terrain and opposition.

The so-called Partition Sejm, with Russian military forces threatening the opposition, on September 18, 1773, signed the treaty of cession, renouncing all claims of the Commonwealth to the occupied territories.

* The Compromise of 1850, proposed by Henry Clay in January 1850, guided to passage by Douglas over Northern Whig and Southern Democrat opposition, and enacted September 1850,

He timed Gell's appointment to coincide with both the Long Vacation ( from June to September ) and the death of Mark Pattison, so potential opposition was prevented from attending the crucial meetings.

Cromwell circulated injunctions for their enforcement which went beyond the Articles themselves, provoking opposition in September and October in Lincolnshire, and then throughout the six northern counties.

On 30 September 1642 Parliamentarians led by Sir Robert Harley and Henry Grey, 1st Earl of Stamford occupied the city without opposition.

Sultan Ahmed III had become unpopular by reason of the excessive pomp and costly luxury in which he and his principal officers indulged ; on September 20, 1730, a mutinous riot of seventeen janissaries, led by the Albanian Patrona Halil, was aided by the citizens as well as the military until it swelled into an insurrection in front of which the Sultan was forced to give up the throne.

Bruce Dow originally performed the role of Pseudolus, but was forced to withdraw from the entire 2009 season due to an injury, and the role was then performed by Sean Cullen as of September 5, 2009.

On September 15, 2004, a major leak in the Interstate 93 north tunnel forced the closure of the tunnel while repairs were conducted.

On 28 September 2008, the CSU failed to gain an absolute majority, attaining 43 %, of the vote in the Bavaria state election for the first time since 1966 on a percentage basis and was forced into a coalition with the FDP.

The invading Prussian army faced little resistance until checked at the Battle of Valmy ( 20 September 1792 ), and forced to withdraw.

The government declared a state of emergency, and a National Operations Council, headed by the Deputy Prime Minister, Tun Abdul Razak, took power from the government of Tunku Abdul Rahman, who in September 1970 was forced to retire in favour of Abdul Razak.

The Conservative majority proved too small for effective control over his backbenchers, particularly after the United Kingdom's forced exit from the Exchange Rate Mechanism ( ERM ) on " Black Wednesday ", 16 September 1992, just five months into the new parliament, when billions of pounds were spent in a futile attempt to defend the currency's value.

On 27 September 1939, Ribbentrop made a second visit to Moscow, where at meetings with the Soviet Foreign Commissar Vyacheslav Molotov and Joseph Stalin, he was forced to agree to revising the Secret Protocols of the Non-Aggression Pact in the Soviet Union's favour, most notably agreeing to Stalin's demand that Lithuania go to the Soviet Union.

The latter measure was applied after the so-called general strike from 1 September to 3 September 1942, which paralyzed the administration, agriculture, industry and education as response to the declaration of forced conscription by the German administration on 30 August 1942.

In June 1940, after the fall of France, the Conseil General of New Caledonia voted unanimously to support the Free French government, and in September the pro-Vichy governor was forced to leave for Indochina.

Nevertheless, soon after the close of the synod, the Roman Republic forced Alexander III to leave the city, which he never re-entered, and on 29 September 1179, some nobles set up the Antipope Innocent III.

However, Bethmann-Hollweg was forced to resign and the German High Command, hoping for a military victory, delayed the German reply until 20 September.

Intel at first planned to demonstrate the P5 in June 1992 at the trade show PC Expo, and to formally announce the processor in September 1992, but design problems forced the demo to be cancelled, and the official introduction of the chip was delayed until the spring of 1993.

In September 1980, President Choi Kyu-ha was forced to resign from president to give way to the new military leader, Chun Doo-hwan.

The Fatah subgroup Black September hijacked a Sabena flight on route to Vienna and forced it to land at the Ben Gurion International Airport in Lod, Israel.

* September 16 – Shah Reza Pahlavi of Iran is forced to resign in favor of his son Mohammad Reza Pahlavi of Iran, under pressure from the United Kingdom and the Soviet Union.

* September 1 – Terry Fox is forced to end his Marathon of Hope run outside of Thunder Bay, Ontario, after finding that the cancer has spread to his lungs.

* September 16 – Black Wednesday: The pound sterling and the Italian lira are forced out of the European Exchange Rate Mechanism.

On September 19, 1931, the United Kingdom left the revised gold standard, forced to suspend the gold bullion standard due to large outflows of gold across the Atlantic Ocean.

For example, some believe that the United States was forced to contract the money supply and raise interest rates in September 1931 to defend the dollar after speculators forced Great Britain off the gold standard

* September 22 – Treaty of Basel: Maximilian is forced to grant the Swiss de facto independence.

In September 1940 with the return of Southern Dobruja ( the Cadrilater ) by Romania to Bulgaria under the Treaty of Craiova, 80, 000 Romanians were compelled to move north of the border, while 65, 000 Bulgarians living in Northern Dobruja were forced to move into Bulgaria.