Independence is a condition of a nation, country, or state in which its residents and population, or some portion thereof, exercise self-government, and usually sovereignty, over the territory. The opposite of independence is the status of a dependent territory.
Depending on the state. If it's a four year federal sentence you will have to do 85% ,or they takeoff 54 days a year for good behavior. Most states abdopted the NERA Act for federal funding (No Early Release Act). Meaning if you're incarcerated for a violent crime you will be required to do 85% of your sentence.
What exactly takes 66 days? In our study, we looked at how long it took people to reach a limit of self-reported automaticity for performing an initially new behaviour (that is, performing an action automatically), and the average time (among those for whom our model was a good fit) was 66 days.