The Factory Act of 1833, passed after Sadler had left Parliament, restricted the working day in textile mills to 12 hours for persons aged 13 through 17, and 8 hours for those aged 9 through 12. Sadler's health was fatally impaired by his strenuous work with the committee
The main reason why the Navigation Acts angered the colonists was because limited the use of foreign ships used for trade in the colonies, which limited the colonists' choices for goods.
