The term “sister” refers to a female friend, relative, or general female. In many cultures, the term also refers to a member of a religious order, such as a nun. Nurses who served as nuns were called sisters. In the English-speaking world, the word means “dear sister.”
Having a sister has many benefits. For one, it makes people more balanced and compassionate. According to Tony Cassidy, professor of psychology at Stanford University, open lines of communication help us be more balanced. Sisters often bring their emotional nature to family situations, making them less stressed. A sister, on the other hand, may not have the same emotional depth as a brother, so having a sister can make things easier. This study shows that having a sister can boost one’s self-esteem.
The Sister Cities International was founded in 1956 by President Dwight D. Eisenhower. Today, it is a nonprofit, 501(c)(3) organization, which unites cities in both countries. In the United States, there are 545 sister cities and 2,121 partnerships. The organization includes representatives of local nonprofits, municipal governments, private sector, and civic groups. The organization also coordinates cultural events and research projects. Sister cities are volunteers and may be self-organized.