Can someone please help me​

Me and youin the summer of 1804, after meeting native americans for the first time, lewis and clark reached the eastern edge of

In ohio in 1872, the cleveland massacre was a violent labor dispute at standard oil refineries in cleveland. a takeover by standard oil of the refineries in cleveland. an attempt to stop standard oil from becoming a monopoly. a failed attempt by standard oil to take over other refineries.

What was the final spark that ignited the “european powder keg” and started world war 1