Which theory do you find more persuasive?Discuss

Some historians argue that great events occur because of impersonal forces beyond the control of individuals (for example, technological change or economic changes). Others prefer to emphasize the contributions of key individuals, and the particular decisions they make at particular moments. Which theory do you find more persuasive? Use one of our key events (the Reformation, French Revolution, Industrialization & the Great War) and explain why it was caused by impersonal forces OR by the particular decisions of key individuals.