The right to marry is a legal and constitutional right that allows individuals to enter into a marital relationship, recognized by the state, and is considered a fundamental aspect of personal freedom and autonomy. This right is closely tied to issues of equality, privacy, and individual liberty, making it a significant point of discussion in the context of substantive due process. The legal recognition of marriage has evolved over time to include same-sex couples, highlighting the ongoing struggle for civil rights and equal protection under the law.