Final answer:
The Oslo Strike of 1928 was a major labor strike in Oslo, Norway, organized by the Norwegian Confederation of Trade Unions (LO) to demand better working conditions and higher wages.
Step-by-step explanation:
The Oslo Strike of 1928, also known as the May 1st Strike, was a major labor strike that took place in Oslo, Norway. It was organized by the Norwegian Confederation of Trade Unions (LO) and involved around 50,000 workers from various industries, including shipyards, factories, and transport. The strike was held to demand better working conditions, higher wages, and the recognition of the right to collective bargaining. It was a significant event in the Norwegian labor movement and led to improvements in workers' rights.