In october of 1777 George Washington declared an all colony thanksgiving because he was feeling What is really good due to what event?

In October 1777, George Washington declared a national day of Thanksgiving in gratitude for the American victory at the Battle of Saratoga. This pivotal win not only boosted morale among the Continental Army but also helped secure French support for the Revolutionary War. Washington's proclamation aimed to unite the colonies in a collective expression of gratitude and hope for future successes.