<P> There was disagreement among labor unions at this time about when a holiday celebrating workers should be . Many advocated for May 1st . However, President Cleveland was concerned that a labor holiday on May 1st would be a commemoration of the Haymarket Affair of May 1886, as it eventually was under the name International Workers' Day . In 1887, he publicly supported the September Labor Day holiday . </P> <P> In 1887 Oregon became the first state of the United States to make Labor Day an official public holiday . By the time it became an official federal holiday in 1894, thirty U.S. states officially celebrated Labor Day . </P> <P> Following the deaths of workers at the hands of United States Army and United States Marshals Service during the Pullman Strike of 1894 in Chicago, the United States Congress unanimously voted to approve legislation to make Labor Day a national holiday and President Grover Cleveland signed it into law six days after the end of the strike . Cleveland supported the creation of the national holiday in an attempt to shore up support among trade unions following the Pullman Strike . The date of May 1 (an ancient European holiday known as May Day) was an alternative date, celebrated then (and now) as International Workers' Day, but President Cleveland was concerned that observance of Labor Day on May 1 would encourage Haymarket - style protests and would strengthen socialist and anarchist movements that, though distinct from one another, had rallied to commemorate the Haymarket Affair on International Workers' Day . </P> <P> All U.S. states, the District of Columbia, and the United States territories have made Labor Day a statutory holiday . </P>

What president made labor day a national holiday