Taxation
Charles I collected taxes and forced land owners to pay their loans in order to gain money for England for the war without the need for calling parliament. (He later had no choice but to call the parliament)
Religion
Extreme puritans who were a part of the parliament wanted to abolish bishops and the book of common prayer.
Founding of St. Petersburg, where he built smaller versions of versailles
Created the Table of Ranks which equated a person’s social position with their rank in the military
Gained secular control over the church