Shia islams and sunni islams are alike in that they

They are both monotheistic, they practice the five pillars of Islam, and they believe that Islam began in 610 CE when Muhammad began receiving messages from God.  

Shi'ah and Sunni muslims both worship one god, both believe the Quran, both go to the masjid (mosque), and both believe that committing zina is haraam (forbidden). This just a few of their similarities.  

a forgein bfvgrebdfkx

here are some major conflicts i found. maybe pick one and do more research on it. (cause i ain't writing 6 paragraphs)

in 1877, the nez perce war took place.

1881 - president james garfield was assassinated.

1882 - the chinese exclusion act was passed.

1883 - a decision in the civil rights cases legalized racial segregation in the united states.

1887 - the dawes act was passed.

1893 - the panic of 1893 took place. (what a creative name)

and there are probably other topics you can find if you just search up "united states timeline," or "conflicts in the 19th century for america."

then once you find a topic you like find out how it affected the people of america and what not. (sorry if this feels a bit short changed, history was and never will be one of my strong topics)