1) The document outlines several events held by OPAP and Microsoft between 2017-2018, ranging from large roadshows with thousands of attendees to more selective launches. 2) The largest events include a roadshow hosted by OPAP that reached over 3,000 attendees across 5 Greek cities, and an "OPAPleague" celebration event that drew 1,300 people. 3) Microsoft events summarized include the launches of Visual Studio 2010, Office 2010, Office 365, and an annual Partner Ecosystem Conference, with attendees generally in the hundreds for each.