History Maker Neil Armstrong was an American astronaut and aeronautical engineer, best known for being the first person to walk on the Moon during NASA's Apollo 11 mission in 1969. Articles are a unique way for readers to learn about the world around them. In addition to building reading comprehension skills and increasing vocabulary, articles can be used for writing and research. Biographies are broken into 6 single-page sections: Who Is, Early Life, Accomplishments, Fun Facts, Why Important, and Words to Know.