S.A Stands for Sine Anno.
Answer:
Happyness is key
Explanation:
I think it means that if you do something you like, you will accualy enjoy doing it, making it not seem like work, but fun.
Progressivism is the advocacy for improvement by reform. This movement was used by Wilson in his endeavors for change. In 1917, he stablished the War Industries Board to supervise production of war materials. He used his authority to mobilize the nation and use advancements in science and technology for the fulfillment of his mission.
