Final answer:
The development of humanism was an international phenomenon that spread beyond Italy and influenced other countries in Europe. It emphasized the value of human beings and the study of ancient Greece and Rome to improve oneself and society. Humanism also gained traction in northern Europe with the goal of making people better Christians.
Step-by-step explanation:
The development of humanism was an international phenomenon because it spread beyond Italy, where it initially originated, and influenced other countries in Europe. Humanism emphasized the value and dignity of human beings and the study of ancient Greece and Rome to improve oneself and society. This intellectual movement had important centers in Florence, Naples, Rome, and other Italian cities, but it also gained traction in northern Europe with the goal of making people better Christians.