How has the right to assembly and petition changed over time?

Originally, the right to assemble was considered less important than the right to petition. Yet, over the years, the courts have interpreted the First Amendment and the right to peaceful assembly as significant in its importance to society today. The Supreme Court of the United States has held that the First Amendment protects the right to conduct a peaceful public assembly.  The right to assemble is not, however, absolute.  Government officials cannot simply prohibit a public assembly, but the government can impose restrictions on the time, place, and manner of peaceful assembly, provided that constitutional safeguards are met.  Time, place, and manner restrictions are permissible so long as they are “justified without reference to the content of the regulated speech, . . . are narrowly tailored to serve a significant governmental interest, and . . . leave open ample alternative channels for communication of the information”

Overall, the Right to Assemble is of significant importance to U.S. society as it gives all citizens the freedom to have a voice and freely associate with one another in public under a common cause or shared value.

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.