"
How about ""Ancient Greek and Roman Mining""?  Or ""Ancient Roman Mining in Europe""? (I'm actually surprised that there is only a brief mention of mining in Greece.) 
O.K. re organization.  I'll leave it as is.
I have another question.  It is in the section ""The Americas"".  In the middle of the third paragraph, a quote ends, ""....;"" Gold Rushes....""  Besides the fact that the semi-colon is inside the quotation marks (which I understand is not WP style), the presence of the semi-colon there seems odd.  Maybe it's because of the capitalized ""Gold Rushes"", but perhaps a period is better there.  What do you think?  "