I want to know the answer to the following question:
When were Switzerland women granted the right to vote on a federal level?
All the background I'm provided with is that "Some Swiss cantons approved this in 1959, while at the federal level it was achieved in 1971 and, after resistance, in the last canton Appenzell Innerrhoden (one of only two remaining Landsgemeinde) in 1990.". Is that enough to answer the question?