1883                         

• Members of the Shadyside Presbyterian Church found a college preparatory academy for their sons, called “背阴书院" 和 located in the Shadyside neighborhood of Pittsburgh's East End.
• Initial grades for the school were 7-12, known as “Forms I-VI.”
• William Ralston Crabbe becomes the first “principal” of 背阴书院

1906

• 背阴书院 和 three other schools form the Western Pennsylvania Interscholastic Athletic League (WPIAL); Principal Crabbe serves as the WPIAL’s first president.

1909

• A 初中 division is added to the Academy (grades K-6).

1915

• Principal Luther Adams invites the Country Day Association of America to meet in Pittsburgh, 由背阴书院主办.

1917

• U.S. 加入第一次世界大战, as well as the emergence of public high schools such as Peabody 和 Schenley, 导致入学人数大幅下降, 学院几乎要永远关门了.

1919

• 在新校长哈罗德·诺默的领导下, 背阴书院 begins its first substantial capital campaign 和 st艺术 to plan for its “country school” campus in suburban Fox Chapel.

1922

• Ground is broken at 福克斯教堂路423号 in February; builders lay cornerstone of Rowe Hall in May; 和 new “country school” campus opens in October with only two buildings (Rowe 和 Ellsworth) near completion.
• 高级学校 (grades 8-12) moves to new Fox Chapel campus; 初中 (grades K-7) stays in Shadyside.

1940

• 背阴书院 merges with The Arnold School for Boys; Arnold’s seven-acre campus on South Braddock Avenue in the Point Breeze neighborhood of Pittsburgh's East End becomes the Academy’s new 初中 campus.
• Original property in Shadyside is sold to the University of Pittsburgh (和 later to Winchester Thurston School).

1958

• 背阴书院 opens the first st和alone 中学 in Western Pennsylvania, serving grades 6-8 和 housed in a mansion on a 30-acre property just north of the 高级学校 in Fox Chapel.
• 阴边学院尝试男女同校, as no local schools are available in Fox Chapel for girls in grades 6-8. Forty-four girls, including faculty children, attend the 中学 in the late 50s 和 early 60s.
• African-American students are admitted to the 中学 (later to the 初中 in 1964 和 the 高级学校 in 1966).

1973

• After briefly considering a merger with The Ellis School for Girls, 背阴书院’s 高级学校 adopts coeducation 和 the first girls are admitted to grades 9-12.  It would be nearly 25 years before coeducation is formally adopted at all three divisions (初中 in 1994; 中学 in 1997).

2007

• The first K-12 female “Lifers” graduate from 背阴书院.
• 背阴书院 opens a pre-kindergarten program in a new free-st和ing facility on the 初中 campus;

2017

• 背阴书院 merges with the PK-5 independent school Fox Chapel 乡村走读学校, which becomes the Academy’s second elementary (PK-5) campus, 福克斯教堂的荫边学院乡村走读学校.