Which of the following was a significant change regarding succession to the throne made in 2013?

The significant change made in 2013 regarding succession to the throne was the introduction of gender equality in succession. This reform allowed for the first time that the eldest child, regardless of gender, would be next in line for the throne. Prior to this change, male heirs had precedence over female heirs, meaning a younger son could displace an elder daughter in the line of succession.

The reform aimed to modernize the monarchy and eliminate the outdated provisions of male preference primogeniture, aligning the succession laws with contemporary values of equality and fairness. This change applies to all royal descendants born after October 28, 2011, ensuring that both sons and daughters have equal rights in inheriting the throne moving forward.

Recognizing this change is crucial in understanding the evolution of the British monarchy and its response to societal changes, as it reflects a broader trend towards gender equality in various spheres of society.