Cool link to calculate historical buying power of US/UK currencies

How much was 100K worth in 1958 US dollars? What was the price of gold in 1945? How much labor could you hire for $1,000 in 1910? If you need economic accuracy for a story,
Economic History Net has databases for the US and UK, some going back hundreds of years.

Thanks, Joan (author of Zulu: An Irish Journey)