A timeline of how the Atlanta school cheating scandal unfolded

A timeline of the Atlanta Public Schools cheating trial.

December 2008

An AJC investigation highlights suspect scores on the state Criterion-Referenced Competency Test in five elementary schools, including one in Atlanta. APS responds that it has no plans to investigate.

Feb. 2009

Beverly Hall is named the national Superintendent of the Year by the American Association of School Administrators, which credits her for rising test scores and graduation rates. The group called Atlanta “a model of urban school reform.”

June 2009

A state investigation finds strong evidence of cheating on retests at one Atlanta school and three in other districts.

July 2009

The state Board of Education throws out math retest results from four schools, including Atlanta’s Deerwood Academy, despite Superintendent Beverly Hall’s statement that external investigators found no evidence of tampering.

August 2009

Hall describes APS as a model urban school district with double-digit test score gains. An AJC investigation shows the district fails to scrutinize many allegations of test cheating.

Oct. 2009

An AJC analysis shows statistically improbable increases on the state tests in a year's time at a dozen Atlanta schools and seven others statewide. Hall and her aides say they don't believe there was cheating.

Nov. 2009

Hall announces that national experts will review test scores at schools that recorded extraordinary improvements.

Feb. 2010

The state Board of Education orders districts to investigate 191 schools statewide for potential cheating, including the 58 in Atlanta.

March 2010

LaChandra Butler Burks, chairwoman of the Atlanta school board, announces a “Blue Ribbon Commission” will oversee the district’s cheating investigation and that its members will be chosen from recommendations by the board, the Metro Atlanta Chamber and the nonprofit Atlanta Education Fund, a district advocacy group.

July 2010

The state board threatens to punish the district if it does not submit a report on its investigation by Aug. 2. The AJC reports that the APS panel looking into reports of cheating had ties to Hall or to the district, and that central office administrators took part in questioning potential witnesses.

Aug. 2010

After initially refusing to accept the Blue Ribbon Commission's finding of cheating, the Atlanta school board relents. The commission concludes that cheating occurred at just 12 schools. The AJC reports that APS' chosen investigators scrutinized fewer than half of the 58 schools in question. Gov. Sonny Perdue announces that special investigators will look into the cheating scandal.

Oct. 2010

Fifty GBI agents begin questioning Atlanta teachers and administrators about whether they falsified test results.

Nov. 2010

A study largely confirming the AJC's 2009 analysis finally comes to light, months after Hall received drafts. Hall announces she will retire in June.

Dec. 2010

Fulton County District Attorney Paul Howard appoints two special prosecutors for a criminal probe of Atlanta schools. Allegations include possible felony charges of lying to agents or investigators and the destruction or altering of public documents. The AJC reports that Hall and other APS officials carried out a broad campaign over two years to suppress mounting allegations of widespread cheating.

Feb. 2011

State investigators say they uncovered a pattern of intimidation, threats and retaliation against APS employees who report cheating or other improprieties. They tell the district to drop plans to do its own cheating analysis, saying it would interfere with the governor’s special investigation. After the district refuses, a judge orders it to stop its internal probe.

July 2011

The AJC reports that a former high-ranking district official says Hall ordered the destruction of investigative documents detailing systematic cheating and ordered subordinates to omit adverse findings. At month's end, Beverly Hall retires after 12 years with APS.

July 2012

Within days, specially appointed state investigators cite a wide range of cheating violations and organized and systemic misconduct in APS. Their report names 178 teachers, principals and administrators at 44 Atlanta schools. Eighty educators confessed to cheating, according to the report. Davis said most of the educators named in the report will remain on the payroll as the district decides what to do next. That same month, interim school superintendent Erroll Davis takes over.

Feb. 2012

APS officials tell educators implicated in the state report they have one day to resign or face firing. "I do not intend to issue contracts to anyone who has not been exonerated," Superintendent Erroll Davis says. "I've made a commitment to parents that people who committed cheating, whether knowingly or unknowingly, will not be put in front of children until they are exonerated."

March 2012

The Atlanta school district begins disciplinary tribunals for educators accused of cheating who want to appeal their dismissals. The educators also face suspension or revocation of their teaching licenses by the Georgia Professional Standards Commission. The PSC says it won't hear appeals in the cases until the district attorney completes the criminal investigation.

June 2012

APS announces that 12 educators named in the investigation can return to the classroom after it determined there was not enough evidence to fire them.

July 2012

Cheryl Twyman, former principal at West Manor Elementary, becomes the first accused principal to be reinstated into a school district job after a year on paid administrative leave. The district determined there was insufficient evidence to prove that she violated any testing protocol. She receives a position at the central office.

Dec. 2012

The Atlanta school board votes 7-2 to renew the contract of Superintendent Erroll Davis, whose current contract expires in June. The 18-month contract extension gives the board an out if it votes to hire a replacement superintendent. Davis has said he does not want the job long-term.

March 2013

Of the 178 people implicated in the state investigative report, 21 educators have been reinstated and three people are still awaiting tribunal appeals, said APS spokesman Stephen Alford. About 150 educators resigned, retired or lost their appeals to retain their jobs.

Sept 2013

Tamara Cotman, who oversaw 21 north Atlanta schools, is found not guilty of trying to influence a witness after a 3-week trial. Cotman still faces racketeering charges. Prosecutors were hoping to make Cotman's case a test-run of their arguments.

Oct. 2013

Defendant Lisa Terry, a former Humphreys Elementary teacher, apologizes for her actions and pleads guilty to a misdemeanor charge of obstruction, agreeing to testify for the prosecution.

Dec. 2013

Armstead Salters, a principal at C.L. Gideons Elementary for three decades, pleads guilty to a felony count of making false statements and writings. Prosecutors say it was an "open secret" that cheating had been going on at Gideons for years.

Feb. 2014

Millicent Few, a former APS human resources director, pleads guilty to misdemeanor malfeasance in office. Few is expected to testify that Beverly Hall ordered the destruction of internal investigative reports.

Feb. 2014

Of the original 35 educators indicted, 21 choose to enter guilty pleas by the deadline, leaving 13 to stand trial (one defendant passes away while waiting trial).

March 2014

Lawyers for Beverly Hall say that she is suffering from Stage IV breast cancer and is too ill to stand trial.

April 2014

It's revealed that prosecutors and lawyers for Hall tried to work out a deal where she would plead guilty to a single felony charge in exchange for probation. Sources familiar with the negotiations say the deal fell through over the issue of admitting wrongdoing.

April 2014

Two cancer experts disagree on whether Beverly Hall can withstand a trial. The emotional hearing includes an outburst by former Mayor Andrew Young.

July 2014

Judge Jerry Baxter says the trial can take no more delays and sets the trial for August for the remaining 12 defendants, without Beverly Hall.

March 2, 2015

Beverly Hall dies of breast cancer at 68.

March 16, 2015

Attorneys give closing statements.

March 19, 2015

Jury gets the case to consider.

April 1, 2015

Jury returns guilty verdicts for conspiracy and other felony charges for 11 of the defendants. Only former teacher Dessa Curb walked away with no convictions. The others are led out in handcuffs and booked into jail.