The Second Vatican Council, itself, did not have that big an impact on the Americas, however, the wreckovation done by progressive bishops and priests pretty much killed the Church in the Americas. When the Second Vatican Council first met, the Church in the Americas was vibrant and growing. The religious Orders were overflowing, nearly every parish had a parish school, and Catholics were noticeably different from the culture around them. Since the "implementation" of Vatican II, churches have closed, schools have closed, convents and monasteries have closed, and the few that are still open are dying. There is a revival among some dioceses that have sought to implement Vatican Council II as it was meant to be done, and these dioceses are growing, their seminaries and convents are starting to fill, and Catholic families are again starting to live as Christians. However, these is a vanishingly small number, within the next 20-30 years, the Church in America will not be recognizable.
Pope John XXXIII initiated the Second Vatican Council also known as "Vatican II"
Yes
In Vatican City, thus the name Vatican Council II.
There were exactly no doctrines defined at the Second Vatican Council. The Second Vatican Council was the first purely pastoral council ever held in the Church.
1962
The council was held mostly at the Vatican but some meetings were held at other venues in and around Rome.
Vatican Council II (1962 - 1965) was held in Vatican City located in Rome, Italy.
The First Vatican Council was convoked by Pope Pius IX on 29 June 1868 and was formally closed in 1960 prior to Vatican II
Pope Paul VI closed Vatican II.
We are still waiting for this to happen. It usually takes decades to fully implement a Council, and this hasn't yet happened with Vatican II.
After the Second Vatican Council (Vatican II).
Vatican Council II