When was the keynesian first adopted by the US?

IRS says to qualify for the first time homebuyers credit one cannot have owned a principal residence during the three years prior to the date of purchase What does owned mean? How long after you file do you have to appear in court for the divorce? Can someone with a general power of attorney speak on behalf of person called to a competency hearing? What are the importance of negotiable instruments? Can a power of attorney collect life insurance for a beneficiary on their behalf? Would a minor child have to pay rent to his parents? Why do some Jews allow divorce? Can creditors in Massachusetts force you to sell your home? Why is there under recording of domestic abuse? What types of people join gangs? When was the 2nd amendment passed? Does US Postal Service have literature re opening another's mail box or tampering with mail? Which agency within the executive office of the president is responsible for how much natural resources are used? Was Nathan Kasminsky the real Jack the Ripper? Who pays the liens on a sheriff's sale? Who pays for visitation travel expenses after the non-custodial parent has relocated from AZ to Minnesota for a job transfer and the custodial has relocated from AZ to Alaska? Can you let someone else claim your child on federal taxes if you owe back child support for other children in the state of Ohio? Is the death penalty the best punishment for dangerous criminals? What happens if you owe child support however the child is now an adult? Once arrested when must you be taken before the magistrate?