What three things spread Renaissance ideas?

Renaissance ideas spread through the invention of the printing press, which allowed for the mass production of books and pamphlets, making literature and scientific works more accessible. The patronage of arts and scholarship by wealthy individuals and institutions, such as the Medici family in Florence, also played a crucial role in promoting Renaissance culture. Additionally, the movement of artists and intellectuals across Europe facilitated the exchange of ideas and styles, further disseminating Renaissance thought.