Prime Timeline
   | Year | Event | 
   | 5 billion bc | 
       ● [1]
         A female member of the Q continuum is born. She will later become romantically involved with Q. [2] | 
   | 4 billion bc | 
         ● [3]
         Q begins a romantic involvement with a female Q. [2]
      
 | 
   | 2373 | 
       ● [2]
         The progressive faction wins the Q civil war with Voyager's help. Q mates with a female Q, helping to end the rifts which caused the war by producing a baby Q. [2] | 
   
Colour key
● - Shows the canon status and reference of the year for this event
References
| # | Series | Season | Source | Comment | 
| 1 | VOY | 3 | The Q and the Grey | Q described Q's amarous intentions towards Janeway as being Tossed aside for someone five billion years younger. | 
| 2 | VOY | 3 | The Q and the Grey |  | 
| 3 | VOY | 3 | The Q and the Grey | Q said they had been dating for 4 billion years. This date presumes that their relationship took place in a linear fashion, which is not necessarily the case. |