Can you conquer a battlefield the same turn that you held it, and does it trigger 'when you conquer' effects?

Ruling: You cannot conquer a battlefield on the same turn you held it. You can only score a point from each battlefield once per turn, either from holding or conquering.

Nuances:

• Even if you don't score the point (because you already scored from that battlefield), you still need to score to trigger 'when you conquer' effects
• You still score if you draw from conquer instead of gaining your last point