The 8th amendment is very important. This amendment is for the criminals and people in jail. When it says "Exessive bail shall not be required" it means that if you go to prison for steeling a phone they can't make you pay $1000000000000 to get out of jail.
When the 8th amendment says "No cruel and unusual punishments inflicted" it means that no one will punish others crule or unusually in any way.
The 8th amendment was proposed because when the brittish were ruling they would often wip or punish thier citizens.
The 8th amendment was ratified on Dec 15 1791.
There are restrictions on the severity of the punishments usually depending on the crime. There is also a restiction on the judge for setting the bail usually depending on the crime.