Whether it was the Swiss leaks scandal, the European Parliament’s formal adoption of the 4th Anti-Money Laundering Directive (AMLD), or a movement to require multinational corporations to publicly report financial information on a country-by-country basis, 2015 was a year in which transparency became a watchword across Europe. To examine the year’s biggest moments in transparency, the Financial Transparency Coalition has published an interactive timeline that allows users to get an overview of major events as they happened, with links to further coverage.

Some of the key moments of 2015 include:

HSBC Switzerland suffers a major leak of secret bank account details that showed how the bank helped customers around the world hide money

The European Union adopted its 4th Anti-Money Laundering Directive, which creates a register of the real owners of companies as part of a larger effort to fight money laundering, corruption and tax abuse

The European Parliament called for increased corporate transparency, and for multinational corporations to report their financial information on a country-by-country basis

Ukraine launched the world’s first public register of beneficial ownership, while other registries were under development in the United Kingdom, Denmark, Norway and other countries

Leaders of 20 of world’s largest economies (G20) signed off on two projects led by the Paris-based Organization for Economic Coordination and Development to tackle corporate tax avoidance and cross-border tax evasion

Click here to experience the interactive timeline in its entirety.