Past Years What we know about, year by year back to the first Bi Visibility Day / International Celebrate Bisexuality Day, which was marked in 1999. 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999