MARCH 2015:

* Ms Berejiklian and Mr Maguire begin a "close personal relationship" around the time of the NSW election. Ms Berejiklian was the transport minister while Mr Maguire, a parliamentary secretary, was separated from his ex-wife.

APRIL 2, 2015:

* Ms Berejiklian appointed NSW treasurer after the coalition is re-elected.

JANUARY 23, 2017:

* Ms Berejiklian becomes NSW premier, replacing Mike Baird. Mr Maguire is retained as a parliamentary secretary in her government.

AUGUST 2017:

* Ms Berejiklian tells Mr Maguire she would like him to quit parliament at the 2019 election so the pair can go public with their relationship. Ms Berejiklian says Mr Maguire also wanted that.

SEPTEMBER 7, 2017:

* Ms Berejiklian is heard in a telephone intercept saying she "didn't need to know about that bit" as Mr Maguire discusses his financial interests at Badgerys Creek Airport, and a land deal which would net him a large windfall. A day earlier, Mr Maguire texted Ms Berejiklian that "we clinched the land deal".

NOVEMBER 2017:

* Louise Waterhouse, a western Sydney landowner, twice emailed Ms Berejiklian after being given her private address by Mr Maguire. She requested help with rezoning changes around Badgerys Creek Airport that would benefit a parcel of her land. Ms Berejiklian did not respond.

JULY 13, 2018:

* Mr Maguire appears before ICAC, with evidence heard that he sought payments to help broker deals for property developers.

AUGUST 3, 2018:

* Mr Maguire resigns from the Berejiklian government at the behest of Ms Berejiklian and other frontbenchers, with Ms Berejiklian saying she is "pleased" and "relieved" but privately she remains in contact with Mr Maguire.

MARCH 23, 2019:

* The coalition retains government in the 2019 NSW election.

SEPTEMBER 13, 2020:

* Ms Berejiklian cuts off all contact with Mr Maguire and agrees to support an ICAC inquiry into his business interests.

OCTOBER 12, 2020:

* Ms Berejiklian's relationship with Mr Maguire is revealed at ICAC.

Australian Associated Press