Nine men have been found guilty of being part of a child exploitation ring that groomed underage girls for sex by plying them with alcohol and drugs.
Eleven men were charged with a range of offences including sexual assault, trafficking and rape.
Their victims were as young as 13. One of the 13-year-olds became pregnant and had the child aborted.
Police said one girl was forced to have sex with 20 men in one night when she was drunk.
Five girls were "shared" by Kabeer Hassan, Abdul Aziz, Abdul Rauf, Mohammed Sajid, Adil Khan, Abdul Qayyum, Mohammed Amin, Hamid Safi and a 59-year-old man who cannot be named for legal reasons.
Liaquat Shah, 41, was cleared of sexual assault by the jury and was cleared of conspiracy after the jury was unable to agree a verdict and the prosecution offered no further evidence.
Qamar Shahzad, 30, was found not guilty of conspiracy.
It took the jury of three men and nine women 21 hours and 22 minutes to reach all their verdicts.
A tweet from BNP leader Nick Griffin almost caused the trial to collapse when it led to allegations of the jury having a "far-right bias".
The trial at Liverpool Crown Court took 11 weeks and heard from victims and the defendants themselves.
The prosecution's case was that the men worked together as a group to secure for themselves and others underage girls for sex.
The offences happened in and around Rochdale in 2008 and 2009.
It was claimed that the men drove the young girls around parts of Greater Manchester and delivered them to flats and houses where men were waiting to have sex with them.
Police said the victims were from "chaotic" and "council estate" backgrounds.
The girls were targeted in "honeypot locations" where young people were seen to congregate, such as outside takeaways.
Some of the victims told the jury that they were threatened with violence if they did not submit to their demands.
They said they were lured in with free cigarettes, alcohol and food.
But some of the defendants told the court that the girls were willing participants, and were happy to have sex with the men in return for money.