Esther is a name of a person in the Bible who is a queen in a story that is called the Book of Esther. She is a really important character in the Jewish religion and is celebrated during the holiday of Purim. In the story, Esther is a Jewish woman who becomes the queen of the King of Persia. She is very brave and smart and knows how to help her people. She saves her community by convincing the king to not listen to his advisor, who wanted to hurt the Jewish people. This holiday is celebrated by dressing up in costumes and having parties with friends and family. It's a really happy holiday that people look forward to every year!