The Knights of Labor tried to establish a strong and organized union, so they set up a system of local assemblies, or LAs. There were two main types of LAs, trade and mixed, with the trade LA being the most common. Although this system was put into place to create order, it did the opposite. Even though there were only two categories of LAs, there were many sub-divisions. For the most part it was impossible to tell how many trade and mixed LAs there were at a given time. Local assemblies began to arise and fall all around, and many members began to question whether of not the Knights of Labor was strong enough to fight for the most important issue of the time, achieving an eight-hour work day.