John Nienstedt's resignation Monday as head of the Archdiocese of St. Paul and Minneapolis came 10 days after criminal charges were filed accusing the archdiocese of failing to protect children. For Nienstedt, who had repeatedly refused calls to step down, it was the end of a tumultuous tenure.

Some key events during his seven years in charge:

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MAY 2, 2008: Nienstedt is appointed archbishop of the Archdiocese of St. Paul-Minneapolis by Pope Benedict XVI.

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JUNE 26, 2012: The archdiocese removes the Rev. Curtis Wehmeyer from ministry while police investigate allegations of abuse. According to a police report and a lawsuit, church officials told Wehmeyer to leave parish property before police came to question him. Church officials also took Wehmeyer's gun and laptop and did not give the laptop to police until days later.

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SEPT. 20, 2012: Wehmeyer is charged with sexually abusing two boys. Court documents show church leaders had prior warnings about Wehmeyer and reports of other troublesome conduct, yet allowed him to remain in ministry. Two months later, Wehmeyer pleads guilty to multiple counts of criminal sexual conduct with a minor and possessing child pornography. He is later removed from the priesthood.

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APRIL 2013: Jennifer Haselberger resigns as canon lawyer for the archdiocese because of concerns about the way sexual abuse allegations were handled. Haselberger said she raised alarm bells about Wehmeyer as early as 2008 and was ignored. She said church leaders also failed to act when she discovered pornography on CDs in files on a priest who was up for promotion. Haselberger believed the pictures showed minors. Police later say the CDs showed only adults and the priest has not been charged.

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FALL OF 2013: Haselberger goes public with her claims.

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OCT. 3, 2014: The Rev. Peter Laird, a top deputy in the archdiocese, resigns from his post as vicar general amid fresh criticism of how top church officials handled cases of priests accused of sexual abuse.

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OCT. 6, 2013: The archdiocese announces an independent task force to investigate the way church officials have handled accusations of priest misconduct. Nienstedt said addressing these serious allegations is a "top priority."

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OCT. 24, 2013: Nienstedt orders an external review of all priest files, acknowledging the archdiocese made serious mistakes in the way it handled allegations of clergy sexual misconduct in the last decade. Nienstedt also apologized to victims of abuse and said he knows the ultimate responsibility lies with him as head of the local church.

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DEC. 5, 2013: Under a court order, the archdiocese publishes a list of 34 priests accused of sexually abusing minors.

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DEC. 17, 2013: Nienstedt steps down from public ministry while police investigate an allegation that he improperly touched a boy during a public photo session in 2009. He denies the claim. Three months later, he returns to ministry after a police investigation found the alleged incident likely did not happen.

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APRIL 2, 2014: Nienstedt says in a sworn deposition that he did not believe any priests or church leaders mishandled allegations of sexual abuse by clergy. He also says his staff told him there was nobody in ministry who had credible accusations of child abuse made against them, and that he believed another church official was responsible for notifying parish officials about problem priests.

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APRIL 14, 2014: The task force commissioned by the archdiocese finds serious shortcomings in how allegations of clergy sexual abuse were handled, saying too much decision-making power was given to one or two people who were not subject to adequate oversight. Nienstedt pledges to accept the recommendations.

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JULY 1, 2014: Nienstedt announces that he ordered the archdiocese to investigate him after allegations that he had engaged in inappropriate sexual behavior with adult men. Nienstedt denies the allegations. The archdiocese has not given an update on the investigation.

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JULY 15, 2014: Haselberger makes her most detailed claims yet of a cover-up in the archdiocese, accusing leaders of lying and using chaotic record-keeping to help conceal the backgrounds of guilty priests who remained on assignment. Haselberger says records she examined since 2008 showed nearly 20 of 48 men supposedly restricted due to sexual misconduct were still in ministry.

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JULY 30, 2014: Nienstedt tells AP he will not resign. He also dismisses allegations of inappropriate sexual behavior by him with seminarians and priests, and says he doesn't believe he mismanaged claims of clergy sexual abuse.

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OCT. 13, 2014: Victims of clergy sex abuse join archdiocese leaders to announce settlement of a lawsuit that alleged the church created a public nuisance in the way it handled problem priests. The settlement calls for church leaders not to recommend priests for active ministry or any position working with minors if they have been credibly accused of sexual abuse. They also promised not to conduct internal investigations or interfere with police investigations.

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JAN. 16, 2015: The archdiocese files for bankruptcy reorganization, the 12th U.S. diocese to do so, under weight of some two dozen new sex abuse lawsuits made possible by the easing of statute of limitations.

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JUNE 5, 2015: Minnesota prosecutors file criminal charges against the archdiocese over its handling of clergy abuse claims, saying leaders failed to protect children from harm by turning a blind eye to problems with Wehmeyer. Ramsey County Attorney John Choi also files a civil petition aimed at getting the church to change its behavior and says he hasn't ruled out charging individuals.

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JUNE 10, 2015: Pope Francis announces he will create a tribunal to crack down on bishops who cover up for priests who sexually abuse children.

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JUNE 15, 2015: Nienstedt and Bishop Lee Piche resign.