Who came up with the stages of play?

What is the rotation of symmetry of the tobago flag? What is the circumference of a circle with a radius of 4in? What was Scrooge and Marley counting house called in the Christmas carol? What is the least number that should be added to 924 to make it exactly divisible by 48? Write a unix shell program to print the prime numbers? 80 percent of a price is 40 What is the original price? What is the scientific notation for 0.00004? What is 112 percent of 28.95? How many syllables in steam? How do you measure 30 square meters? What does activity-level variances plus flexible-budget variances equal? How long would it take to travel by steamship in the nineteentch century? What are the composite numbers from 20 to 40? What Roman number is ccxcix? What type of angle is formed by the hands of a clock at 400? Is zillion a word? How do you write 128 in a roman numerals? How do you turn 2 and 3 over 4 into a decimal? How will you find the median and the total frequency from the graph of less than ogive and more than ogive? How many centimetres are there in 100 000 millimetres?

Who came up with the stages of play?