18 h September is designated International Equal pay day
Some key documents are:
- Human Rights Council resolution on Equal Pay (2019)
- ILO Centenary Declaration (2019)
- World Employment and Social Outlook: Trends for Women (2018
Key organisations
For information on the UK see
Gender pay gap reporting service- find data on companies with over 250 employees
Fawcett society campaigns and commentary
Equal Pay Portal has a good set of links to statistics and advice