Develop a timeline covering four eras within the correctional system

Develop a timeline covering four eras within the correctional system. Select four chronologial order 1800 1900 120-195 1960 1970 1980 1990 2000.
-description of the treatment and punishment offenders.
-description of the secure holding and or monitoring of offenders.
-description of alternatives to incarceration
-description of how if at all the correcitonal practices of the era influenced the correctional system and related policies in effect today.
-indication of which of the four era researched was the most beneficial to the correctional system and why.
-citation and references for resources used to conduct research.
using your acquired knowledge of corrections provide a written response including your recommendations for ways in which the current correctional system could be improved upon.