One of its members was Thomas Jefferson, a lawyer from Virginia. He had been a leader in Virginia, and Virginia had elected him to the Continental Congress. The others on the committee were too busy with the revolution to work on the declaration, so Jefferson wrote it alone. He finished the document in a week.
The time frame is in weeks, so it shows the average bull market cycle is 155 weeks or about 39 months. The average bear market is about 17 months, which actually matches the most recent bear market from October 2007 to March 2009 (17 months). A full market cycle is 56 months.
Bear market bottoms occur in the second year more often than in any other year. The third year is the strongest on average of the four years. In the fourth year of the presidential term and the election year, the stock market's performance tends to be above average. And it is.