Final answer:
The printing press allowed knowledge to be spread easier and to differing social classes during the Renaissance.
Step-by-step explanation:
The major invention that allowed knowledge to be spread easier and to differing social classes during the Renaissance was the printing press. Invented by Johannes Gutenberg in the mid-15th century, the printing press revolutionized the production of books and other written materials. Prior to the printing press, books were copied by hand, a laborious and time-consuming process that limited access to knowledge. With the printing press, books could be mass-produced, making them more affordable and accessible to a wider range of people.
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