What happened to the the practice of women covering their heads?

Why don't more Christian women wear a covering? Most people today might associate the idea with the Old Testament, but references to the custom are actually found in the New Testament too: > **1 Corinthians 11:6 NIV** > If a woman does not cover her head, she should have her hair cut off; > and if it is a disgrace for a woman to have her hair cut or shaved > off, she should cover her head. Are there any mainstream denominations that continue to promote head coverings for women? For example is this what the Amish do? When and why did this tradition stop among most orthodox Christians?