Abraham Ortelius, a Flemish cartographer and geographer, is generally recognised as the creator of the first what in 1570 ?
Apparently he was also the first person to imagine that the continents were joined together before drifting to their present position.
In the third century CE, politician, geographer, writer, and cartographer Pei Xiu was the first in China recorded as describing what in full?
31 March, the birthday of César Chávez, is recognised as a holiday in the US states of California, Texas, Arizona and Colorado. What role did he play in the history of the USA?