Can anyone explain what the 1p stamps were used for on old birth,death and marri

Question:

Can anyone explain what the 1p stamps were used for on old birth,death and marriage certificates?

Best Answer - Chosen by Asker: That's the old stamp tax charged on any document that needed an official stamp, seal or notary.

So much for the Revolutionary War, we still have the STAMP tax on some home loans in different states, sheesh.