The Italian Renaissance spread across Europe in the late 1400s through religion.
urbanization.
newspapers.
farming.

Urbanization

Explanation:

The Italian Renaissance spread across Europe in the late 1400s through Urbanization.

The Italian Renaissance began in Florence and it was characterized by a lot of architectural innovations and development In other sectors of life such as health , literature etc which were imitated in other parts of the country and world . In the 1500s printing became more profound and it was also useful in the spread.

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john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.