What is the day of Labor Day

Explanation:

Labor day is like a holiday that people celebrate in honor of working people in the United States and Canada on the first month of September.

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the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.