You should think about 15 May 2020. The then health secretary, Matt Hancock, said at a press conference that people should stay at home as much as possible.
Social interaction was limited to one person at a time. It was the week when people were told they could meet one parent outside, but not both of them.
The R number, which was just below 1 at the time, had begun to have an effect on it, and ministers had indicated that curbs would begin to ease in the coming weeks. The government had changed its slogan from "stay at home" to "stay alert" and hoped that schools would open in June.
One source claimed that about 20 civil servants and aides gathered in Downing Street for a party that lasted into the night. A witness claims that Johnson told one person at the event that they deserved a drink because they were beating back the virus.
It's no surprise that there are other parties held by aides or civil servants when restrictions were in place. The disclosure of an alleged party held during the first lockdown raises questions about whether there was a culture of persistently violating the rules that continued during the Christmas period of 2020.
A steady stream of damaging details have emerged since the first story of the apparent No 10 Christmas party in December 2020 and Johnson's appearance at what has been claimed was a leaving do in November 2020. Jack Doyle, the No 10 director of communications, handed out awards and had secret Santa gifts for them.
There was a photo of Johnson presiding over a Christmas quiz where staff crowded around desks to answer questions.
The Department for Education admitted to having held a Christmas party, acknowledging it was foolish, while the Treasury owned up to drinking around their desks.
The Conservative party headquarters launched an internal investigation after it was discovered that the London mayoral candidate and his team held a party in a basement during the Christmas period last year. A photo of a merrymaking with a buffet was published and caused Bailey to resign from the London policing committee.
No 10 has been evasive about the allegations as each one has emerged, repeatedly asserting that all Covid rules were followed. It was only forced into an inquiry by Simon Case, the cabinet secretary, after a video was leaked to ITV showing Allegra Stratton, Johnson's former press secretary, laughing and joking about the Christmas party and suggesting it could be passed off as a business meeting.
Sources say there was drinking and socializing in No 10 on May 15. They say that Johnson and others were working outside with officials there late in the evening for business.
There was no denial that a social gathering took place, nor that Johnson said he approved of the drinking in Downing Street when he appeared to think he was on the verge of victory against the virus.
Many Conservative MPs will not stand for the return of limits on social contact. There is a suspicion that Johnson will be more reluctant to follow the science and public health advice that suggests tougher curbs are necessary because of the cavalier attitude of No 10.
