On Wednesday, October 11 the Boy Scouts of America announced they will let girls join the organization.
Starting in 2018, girls will be able to join the Cub Scouts, which is for children in grades 1-5. A program for older girls will roll out in 2019.
The smallest unit of Cub Scout organization, called a "den," will still be single gender, either all boys or all girls. Those dens come together to form a "pack." Existing packs will be able to choose if they want to stay single gender.