At that age, they will sleep when they sleep. They should adjust naturally to your schedule, but there will be enough variation that there is really no guarantee of getting them to sleep by 9:00 pm. You really can't force your baby to sleep at a particular time.
The link I'm providing, however, gives help on getting your baby into a healthy sleep schedule.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.