Final answer:
Bloody Sunday was a protest by Russian workers that ended in violence and further sparked unrest in Russia.
Step-by-step explanation:
The event that occurred on Bloody Sunday was a protest by Russian workers. It took place on January 22, 1905 in St. Petersburg, Russia. Thousands of workers marched to the Winter Palace to present a petition to Tsar Nicholas II, demanding better working conditions, higher wages, and political reforms. However, the peaceful protest was met with violence by the Imperial Guard, resulting in the deaths of hundreds of protesters and sparking further unrest in Russia.
Learn more about Bloody Sunday