Step-by-step explanation:
A. The constitutional clause that is common to both Minor v. Happersett and Brown v. Board of Education (1954) is the 14th Amendment. This amendment to the Constitution, which was adopted in 1868, guarantees the equal protection of the laws to all persons within the jurisdiction of the United States.
B. In Minor v. Happersett, the Court held that the 14th Amendment did not grant women the right to vote. This decision was based on the Court's interpretation of the amendment as not extending the right to vote to women. In contrast, in Brown v. Board of Education, the Court held that segregation in public schools violated the equal protection clause of the 14th Amendment. In this case, the Court ruled that segregation in public schools, which disproportionately affected African American students, was inherently unequal and therefore violated the 14th Amendment.
C. Supporters of women's suffrage in the 1870s could take several actions to further their cause after the court defeat in Minor v. Happersett. For example, they could continue to advocate for women's suffrage through political and social activism, such as organizing protests and demonstrations, lobbying elected officials, and working to educate the public about the importance of women's suffrage. They could also work to build support for a constitutional amendment that would explicitly guarantee the right to vote to women. This could involve organizing grassroots campaigns, building coalitions with other advocacy groups, and working with members of Congress to introduce and pass such an amendment.