ValueThen now compares two places across the same years

ValueThen can now put two places next to each other over identical dates. Choose the United States and the United Kingdom from 1913 to 2025, and the calculator returns the change in each, the annualised rate, and what that meant for purchasing power, with a link to the Bureau of Labor Statistics and Office for National Statistics series behind each figure.

The comparison reaches back as far as the evidence does. Medieval England and Sweden can be compared from 1300 to 1500 using Bank of England and Riksbank reconstructions. In those cases ValueThen compares price change only and makes no money or exchange-rate claim, because neither would be honest for the period.

When one place has no released series for a date, the result reads N/A rather than borrowing the other place’s number. Each side is resolved from its own approved source at exactly the same period.