BHP in USD - I like history I read that BHP was 9 pound in 1885 and 76 pound 1887. Apparently the boom went on a few more years but I don't know the sp.
That was part of the Boom period in Australia for many things- it is not far off the China lead boom from 2003-2008
Adjusted for dividend that chart is completely different and shows what a great investment it has been for nearly 10 years straight.