What is one similarity between the famine and plague of the 1300s? both lowered the population of europe. both were caused by weather changes. both lowered food supplies in europe. both were caused by social unrest.

The similarity between the famine and plague of the 1300s which is also stands as its main consequence - Both lowered the population of Europe. This events  brought a lot of pain to many people's lives, destroyed families and lead to the decrease of population as lots of people died from the conditions caused by famine and plague.