German-Americans are individuals in the United States who have German ancestry or heritage. They are one of the largest ethnic groups in the country, with millions of Americans claiming German roots. Many German immigrants arrived in the 19th and early 20th centuries, contributing to the cultural and economic development of the nation. They brought traditions, language, and customs that have influenced American society. The influence of German-Americans can be seen in various aspects of American life, including food, festivals, and music. Celebrations like Oktoberfest highlight their cultural contributions, while dishes such as bratwurst and sauerkraut have become popular in American cuisine. German-Americans have played significant roles in various fields, including politics, science, and the arts.