NEW YORK (AP) — In its latest momentous policy shift, the Boy Scouts of America will admit girls into the Cub Scouts starting next year and establish a new program for older girls based on the Boy Scout curriculum that enables them to aspire to the coveted Eagle Scout rank.

Founded in 1910 and long considered a bastion of tradition, the Boy Scouts have undergone major changes in the past five years, agreeing to accept openly gay youth members and adult volunteers, as well as transgender boys.

The expansion of girls' participation, announced Wednesday after unanimous approval by the organizatio...