Answer:
Other Populist-endorsed measures included bimetallism, a graduated income tax, direct election of Senators, a shorter workweek, and the establishment of a postal savings system. These measures were collectively designed to curb the influence of corporate and financial interests and empower small farmers and laborers.
Taxations without representation
Unfair military placement
Unfair military violence
Unfair government systems
...
The Declaration of Independence lists 27 in the List of Grievances.