What is banner year?

As an AI language model, I don't have access to current events or specific information about events that took place in the past. However, "banner year" is a common phrase used to describe a year of great success or accomplishment. It can be applied to various industries, including finance, sports, politics or entertainment. A banner year is a great milestone achieved by individuals or organizations after working hard towards their goals. It typically means that a significant amount of progress has been made or a record has been broken, resulting in unforgettable memories and recognition of achievements.