Henry Ford celebrates his 75th birthday in Detroit

The video covers the celebration of Henry Ford's 75th birthday, attended by 8000 schoolchildren in Detroit. The state of Michigan declared it a holiday, and Ford, known for his work ethic, took the day off due to popular demand. During the celebration, Ford shared a message predicting prosperity for America through higher wages and lower prices.

How did the state of Michigan respond to Mr. Ford's birthday?

What was Mr. Ford's birthday message about?