Which influential American architect and theoretician is credited with coining the famous phrase ‘form follows function,’ a central tenet of modern architectural design?

💡 Explanation:

Louis Sullivan (1856–1924), often called the 'father of skyscrapers,' coined the phrase 'form follows function' in 1896, arguing that the purpose of a building should dictate its design, a concept that became a cornerstone of 20th-century modernism.