Final answer:
The Ottomans significantly improved the lives of peasants in the territories they took over through various reforms and policies, such as the tanzimat reforms.
Step-by-step explanation:
The Empire that improved the lives of the peasants in the territories they took over is the *Ottomans*. The Ottoman Empire implemented various reforms and policies to uplift the conditions of the peasants. One of the significant reforms was the *tanzimat* reforms which aimed to modernize the empire, improve infrastructure, and provide legal rights and protection to peasants.
Learn more about Improvements in the lives of peasants under Ottoman Empire