Dow: 44 weeks

Stock chart courtesy of Stockcharts.com.

In addition to the 1929 timeline, Ray Dalio of Bridgewater Associates made a point in 2017 that the U.S. economy looks like it did in 1937.

The week of May 4, 1936 to week ending March 6, 1937 covers 44 weeks with a similar structure shown in the chart above.  As of the end of this week, the Dow will complete its 44th week starting from March 23, 2020.