When was the independent music and dramatic arts school  founded from which Howard Milner got post graduate degree?
1880
Title: Howard Milner
Passage: Howard Milner (23 February 1953 – 6 March 2011) was a British tenor.  He began his musical education as a chorister at Coventry Cathedral.  He then won a music scholarship to Monkton Combe School, read English at Cambridge University followed by post graduate at the Guildhall School of Music and Drama.
Title: Guildhall School of Music and Drama
Passage: The Guildhall School of Music and Drama is an independent music and dramatic arts school which was founded in 1880 in London, England.  Students can pursue courses in music, opera, drama and technical theatre arts.
Title: Great Lakes Institute of Management, Gurgaon
Passage: The Great Lakes Institute of Management, Gurgaon (GLIM), (formerly Great Lakes Institute of Energy Management and Research) is a private business school in India.  It began its operations in 2010 and is an extended arm of the Great Lakes Institute of Management, Chennai, founded by Dr. Bala V. Balachandran.  The Institute offers various full time and executive management programs with the one-year Post Graduate Program in Management (PGPM) being its flagship course.  Great Lakes also offers a two-year full-time AICTE approved Post Graduate Diploma in Management (PGDM) (formerly, Post Graduate Program in Management - Energy).
Guildhall School of Music and Drama Howard Milner