Labor Day in September 1882. In connection with this clandestine Knights assembly, a public parade of various labor organizations was held on September 5 under the auspices of the Central Labor Union (CLU) of New York. Secretary of the CLU Matthew Maguire is credited for first proposing that a national Labor Day holiday subsequently be held on the first Monday of each September in the aftermath of this successful public demonstration. An alternative thesis is maintained that the idea of Labor Day was the brainchild of Peter J. McGuire, a vice president of the American Federation of Labor, who put forward the
Determination of the day of the week Determination of the day of the week The determination of the day of the week for any date may be performed with a variety of algorithms. In addition, perpetual calendars require no calculation by the user, and are essentially lookup tables. A typical application is to calculate the day of the week on which someone was born or a specific event occurred. In numerical calculation, the days of the week are represented as weekday numbers. If Monday is the first day of the week, the days may be coded 1 to 7, for Monday through Sunday, as is practiced in