St. Johns diocesan girls higher secondary school

Can you tell me the year of establishment of the St. Johns diocesan girl’s higher secondary school???

The St. Johns diocesan girl’s higher secondary school was founded in the year 1876 by Miss Angelina Hoare with 16 girls, 12 in Upper classes and 4 in the lower. It is a coeducational school. It is affiliated to the West Bengal Board of Secondary Education, and the West Bengal Council of Higher Secondary Education.

Admission details:
To get admission in the nursery school of the candidate must be 3+ years old on 1st February of the next yearAdmission.

This is the address of campus:

Address
ST.JOHN'S DIOCESAN GIRL'S H.S. SCHOOL
17, SaratBose Road, Kolkata – 700 020.
Phone: +91-33-2475 3905
E-mail : johnsdiocesan@gmail.com