The first comprehensive theories of management appeared around 1920. The Harvard Business School offered the first Master of Business Administration degree (MBA) in 1921. People like Henri Fayol (1841-1925) and Alexander Hamilton Church (1866-1936) described the various branches of management and their inter-relationships. In the early-20th century, people like Ordway Tead (1891-1973), Walter Dill Scott (1869-1955) and J. Mooney applied the principles of psychology to management. Other writers, such as Elton Mayo (1880-1949), Mary Follett (1868-1933), Chester Barnard (1886-1961), Max Weber (1864-1920), who saw what he called the "administrator" as bureaucrat, Rensis Likert (1903-1981), and Chris Argyris (born 1923) approached the phenomenon of management from a sociology perspective.

Question: Who applied the principles theories of management in early 20th century?
Answer: Ordway Tead

Question: Which theorist approached the phenomenon of management from a sociology perspective, Likert or Elton?
Answer: Likert

Question: How many years was Mary Follet a writer for theories of management?
Answer: 65

Question: How many years Henri Fayol?
Answer: 84

Question: Which persons lived to be 80 years or older?
Answer: Henri Fayol

Question: How many people did not reach the age of 70?
Answer: 3

Question: Which writers born after 1860 and before 1881 lived to be over 60 years old?
Answer: Elton Mayo

Question: Who was born first, Henri Fayol or Alexander Hamilton Church?
Answer: Henri Fayol

Question: How many years after the first comprehensive theories of management appeared did Harvard Business School offer the first Master of Business Administration degree?
Answer: 1

Question: Which four people were born during the 1860's?
Answer: Alexander Hamilton Church

Question: Who lived longer, Henri Fayol or Alexander Hamilton Church?
Answer: Henri Fayol

Question: How many years longer did Henri Fayol live compared to Mary Follett?
Answer: 19

Question: How many years did Max Weber live?
Answer: 56