I was trawling the web and happened upon this graph: https://fred.stlouisfed.org/series/DTWEXM . The value of the trade-weighted US dollar was going steady until 2014-2015, rose rapidly, then it sort of steadied out again.
I can't recall anything particularly newsworthy in 2014-2015 (though I have a poor track record of paying attention).
What caused the 2014-2015 rise? Which countries did it happen to?
(according to the caption the countries considered in the weighting are the Euro Area, Canada, Japan, United Kingdom, Switzerland, Australia, and Sweden)