September 24, 2018
Mercy Day
The first-ever World Humanitarian Summit took place on 23 - 24 May 2016 in Istanbul, Turkey with representatives of 175 countries, including 57 heads of states or governments in attendance.
flickr: World Humanitarian Summit Closing Ceremony. Used with permission
The Chair's Summary (advance, unedited version) is now available online. Read it here (8pps; PDF)