Final answer:
The Magna Carta established protections and rights for ordinary people, such as trial by jury and due process.
Step-by-step explanation:
The Magna Carta did indeed affect the lives of ordinary people. The document, signed by King John in 1215, established certain protections and rights for English citizens, such as the guarantee of trial by jury and due process. These guarantees helped establish a clearer legal system in England and laid the foundation for similar principles in the United States' Constitution. The Magna Carta was seen as a cornerstone of liberty and had a lasting impact on the development of representative government and the limitations on monarchy in England.