How did terence v. powderly change the knights of labor?

Terence V. Powderly changed the knights of labor by abandoning the secretive ways of the union

They launched more intense strikes on workers' rights.

Explanation:

Their contribution is that for the first time, they have assembled larger masses of radicals who have expressed their dissatisfaction. In the circumstances when workers worked for more than 12 hours when they were utterly disenfranchised, efforts were made to strike. They were under intense pressure, often beaten by police and robbers hired by factory owners, and continued to persevere in their struggle. At one point in the streets of New York, there were tens of thousands of workers protesting for their rights. The strikes themselves were less - more successful; what is decisive is the fact that the consciousness of the disenfranchised workers began to awaken. These events go back to the beginning of the XX century.