Correct the mistakes. the pony express begin in 1860 in the us.it haved 400 horses,80 riders and 180 stations.it were very dangerous for riders to travel. they crosses rivers and mountains. they will travel at night and in all kinds of weather.bandits and indians are attacking them. the pony express end after eighteen months

The Pony Express began in 1860 in the US.It had 400 horses,80 riders and 180 stations.It was very dangerous for riders to travel. They crossed rivers and mountains. They traveled at night and in all kinds of weather.Bandits and Indians were attacking them.
The Pony Express ended after eighteen months.