Activity for Arnita

So I was wondering, why do people have engagement parties? Besides sending out pictures/annoucements for the engagement or families meeting for the first time, why do an engagement party? I was just curious.

My fiancé proposed last Sunday. He gave me the ring that has been passed down for generations to women in my Stepmother's family. I am the 5th generation to wear it. It came from France. It has a deep blue sapphire, 12 clear diamonds, and a 14 karat...