Review the map. What did all of the Crusades have in common?

They all traveled to Jerusalem.
They all began in European states.
They all started from multiple places.
They all involved fighting in London.

by improved communication.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation:

the structure was most likely used for;

c. playing a ball game with stone hoops