I need 4 facts on the history of Labor Day PLEASE ASAP 

One fact about labor is its on september 7 every year. Fact 2 Labor day is a holiday that people celebrate in honor of working people. Fact 3 people worked very hard. Fact 4 Labor day si when the NFL season starts

Explanation:

answer; ///the above statement is (true); //

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.