1) The First Big Long was when Warren Buffett bought Coca-Cola shares in 1987 and hold it in the long term period and make Warren Buffett become the 2th Richest Man in the World.
2) The Second Big Long was when Bill Gates established Microsoft and could deal with IBM to use Microsft in every computer and make Bill Gates become the Richest Man in the world. This Secong Big Long was considered to be the biggest Big Long in the world history.