What was placed in the church to allow men to know where the British
were attacking from?

Lanterns

Explanation:

Paul Revere arranged a signal system using lanterns in the Old North Church to alert the local militias and citizens that the British are coming; one lantern if the British were coming by land and two lanterns if they were coming by sea.

the only true answer is that it expanded after 325 ad.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.