A tribute 15th Edition of IEEE EDUCON conference, from 2010 in Madrid, Spain, 2011 Amman, Jordan, 2012 Marrakesh, Morocco, 2013 Berlin, Germany, 2014 Istanbul, Turkey, 2015 Tallinn, Estonia, 2016 Abu Dhabi, UAE, 2017 Athens, Greece, 2018 Tenerife, Spain, 2019 Dubai, UAE, 2020 Porto, Portugal (online), 2021 Vienna, Austria, 2022 Tunis, Tunisia 2023 Kuwait, and to 2024 Kos, Greece