The actions that were stepping stones to the Revolution of the American Colonists were:
a. England massacred the Indians.
England demanded more support from the American colonists when fighting the Indians and it felt that the Colonists did not support England enough and got angry in consequence.
b. England levied new taxes on the colonists.
England applied new taxes to virtually anything the colonists needed to survive, this situation sparkled the fuse the colonists needed to start the emancipation from England.