What is a synoptic chart?
a. a chart that maps the path of a storm
c. a chart that maps the path of the jet stream
b. a chart that plots weather for a large region at a given time
d. a chart that summarizes local news stations forecasts

The best answer here is this one:

b. A chart that plots weather for a large region at a given time

A synoptic chart is basically what a weather map (but not on a small scare, rather on a bigger scale) is called by the specialists and scientists!

Who it was like back then

It could be anything, recent improvements in technology/telecommunication/internet have increased the pace of globalization.generally, it has something to do with technology. globalization means that people around the world are brought together through technology which speeds things up. so maybe some of those options could be correct. : )