<timeline> DateFormat=mm/dd/yyyy Period = from:01/01/1997 till:12/31/2022 Define $now = 09/16/2021 # Please keep updated Define $skip = at:end # Force a blank line Define $dayunknown = 15 # what day to use if it's actually not known ImageSize= width:1200 height:auto barincrement:25 TimeAxis = orientation:horizontal PlotArea = right:10 left:10 bottom:20 top:20 Legend = top:150 orientation:vertical columnwidth:150 left:20 AlignBars = justify

Colors =

    id:bg         value:white
    id:ceo      value:rgb(0.7,0.7,0.7) legend:CEO
    id:chair        value:rgb(1,0.5,0.5) legend:Chairperson
    id:structure        value:rgb(1,0.6,0.4) legend:Structural_Changes
    id:org        value:rgb(0.4,1,0.4) legend:Organizational_Developments
    id:gtld      value:rgb(0.7,0.3,0.5) legend:TLD_Management
    id:global      value:rgb(1,0.9,0.9) legend:Global_Growth_&_Inclusion
    id:interim       value:rgb(0.5,0.5,0.5)
    id:bylaws      value:rgb(1,0.7,0.5)


    id:line       value:rgb(0.2,0.2,0.2)
    id:lightline  value:rgb(0.9,0.9,0.9)
    id:header     value:rgb(0.8,0.8,0.9)
    id:lighttext  value:rgb(0.5,0.5,0.5)

BackgroundColors = canvas:bg ScaleMajor = unit:year increment:2 gridcolor:lightline start:01/01/1997 ScaleMinor = unit:month increment:3 start:01/01/1997


BarData =

    Bar:CEO
    Bar:skip
    Bar:Chair
    Barset:events

PlotData=

   align:center textcolor:black fontsize:M mark:(line,black) width:15 shift:(0,-5)
    color:ceo width:15
         bar:CEO from:10/01/1998 till:03/15/2001 text:"Roberts"
         bar:CEO from:03/15/2001 till:03/15/2003 text:"Lynn"
         bar:CEO from:03/15/2003 till:06/15/2009 text:"Twomey"
         bar:CEO from:06/15/2009 till:07/15/2012 text:"Beckstrom"
         bar:CEO from:07/15/2012 till:10/15/2012 color:interim shift:(15,-25) text:"Atallah*"
         bar:CEO from:10/15/2012 till:03/31/2016 text:"Chehade"
         bar:CEO from:04/01/2016 till:05/15/2016 color:interim shift:(15,-25) text:"Atallah*"
         bar:CEO from:05/15/2016 till:$now        text:"Marby"
         at:$now shift:(0,-25) align:right text:"*Interim Appointments"
    color:white width:1 mark:(line,white)
         bar:skip at:end
    color:chair width:15 mark:(line,black) #We use the last day of the relevant AGM to set start/end dates
         bar:Chair from:10/01/1998 till:11/16/2000 text:"Dyson"
         bar:Chair from:11/16/2000 till:11/02/2007 text:"Cerf"
         bar:Chair from:11/02/2007 till:10/28/2011 text:"Thrush"
         bar:Chair from:10/28/2011 till:11/09/2016 text:"Crocker"
         bar:Chair from:11/09/2016 till:11/08/2019 text:"Chalaby"
         bar:Chair from:11/08/2019 till:$now       text:"Botterman"
    barset:events width:15
         color:structure from:01/01/1997 till:10/01/1998 text:"ICANN's Birth"
         color:structure from:12/24/1998 till:09/30/2016 text:"IANA Functions Contract"
         color:gtld from:01/01/1999 till:12/31/1999 shift:(130) text:"Testbed Registrars"
         color:gtld from:01/01/1999 till:12/31/2008 text:"Vertical Separation"
         color:structure from:11/04/1999 till:03/15/2001 align:center text:Ad Hoc Group
         color:structure from:11/15/2001 till:06/26/2003 align:center text:"Evo & Reform"
         color:org from:01/01/2007 till:$now text:"Infinite Reviews"
         color:gtld from:01/01/2008 till:12/31/2010 shift:(5,10) text:"Shift to Vertical Integration"
         color:org from:03/01/2008 till:05/31/2012 align:center text:"GNSO 1 - Council Houses Formed"
         color:org from:01/01/2009 till:$now text:"Accountability and Transparency"
         color:global from:05/15/2009 till:12/31/2012 text:"Scaling the Root"
         color:gtld from:01/12/2012 till:12/31/2017 text:"New gTLD Program"
         color:global from:01/01/2013 till:12/31/2018 text:"Introduction and Delegation of IDNs"
         color:global from:01/01/2015 till:$now text:"Global Inclusion Initiatives"
         color:structure from:10/01/2016 till:$now align:center text:"PTI created, takes over IANA Functions Oversight"
         color:org from:01/01/2017 till:$now text:"Information Transparency Initiative"
         color:org from:01/01/2019 till:$now text:"Evolution of the MSM"

</timeline>