Ireland has a long history dating back 7,500 BC with successive waves of settlers including farmers, Celts, Christians, Vikings, and English shaping Irish culture. The country has faced conflicts between groups but also benefited from their contributions like iron tools. Traditional Irish holidays celebrate saints and seasons through customs like wearing green on St. Patrick's Day. Irish weddings incorporate traditions such as handfasting ceremonies and Claddagh rings. Storytelling of folklore has been an important part of passing cultural knowledge through oral tradition in Ireland.