1. When we say **"The glass was broken"** it means when we looked at it, it had been broken before, that is, it shows a state that could be spread over a period of time.
But when we say *"it got broken"* it shows a happening at a particular point of time.
2. But that is not true for the verb *"bear"*. When it changes to passive form, it won't be a state, but a happening. When I say **"I was born in 1990"** it dosn't show a state, but a happening at a point of time. So I wouldn't need to say *"I got born in 1990."*

**What's the difference between these 2 verbs "1.break" and "2. bear"?**

These have the same structure above, but different meaning in passive forms using be verbs. One shows a state and the other shows a happening.