Answer:
During the Great Depression years, the Wagner act was passed which prevented employers from interfering with workers' unions and protests in the private sectors.
In Europe, late in the century, the Vikings, seafaring peoples from Scandinavia, begin raiding the coasts of Europe and the Mediterranean, and go on to found several important kingdoms.
In Asia, the Pala Empire is founded in Bengal. The Tang Dynasty reaches its pinnacle under Chinese Emperor Xuanzong. The Nara period begins in Japan.
Professional actors could not act in Ancient Greece they only wanted amateurs