Editing Major League Soccer (section)

===Timeline===
<timeline>
DateFormat = yyyy
ImageSize = width:1200 height:auto barincrement:20
Period = from:1996 till:2026
TimeAxis = orientation:horizontal
Legend = orientation:horizontal position:bottom
PlotArea = right:100 left:5 bottom:70 top:5 #> to display a count on left side of graph,  use "left:20" to suppress the count, use "left:20"<#

Colors = 
 id:line    value:pink
 id:Full    value:rgb(0.85,0.85,0.95)   legend:League_member
 id:Former  value:rgb(1,0.9,0.9)        legend:Former_member
 id:Future  value:rgb(0.7,0.9,0.9)      legend:Future_member 
 id:Other   value:rgb(0.9,0.9,0.9)      legend:Other_leagues

PlotData=

 width:15 textcolor:black shift:(5,-5) anchor:from fontsize:s
 
 bar:1  color:Full from:1996 till:end text:Colorado Rapids (1996–present)

 bar:2  color:Full from:1996 till:end text:Columbus Crew (1996–present)

 bar:3  color:Full from:1996 till:end text:D.C. United (1996–present)

 bar:4  color:Full from:1996 till:2005 text:Dallas Burn (1996–2004)
 bar:4  color:Full from:2005 till:end text:FC Dallas (2005–present)

 bar:5  color:Full from:1996 till:2011 text:Kansas City Wiz / Wizards (1996–2010)
 bar:5  color:Full from:2011 till:end text:Sporting Kansas City (2011–present)

 bar:6  color:Full from:1996 till:end text:Los Angeles Galaxy (1996–present)

 bar:7  color:Full from:1996 till:end text:New England Revolution (1996–present)

 bar:8  color:Full from:1996 till:2006 text:New York/New Jersey MetroStars; MetroStars (1996–2005)
 bar:8  color:Full from:2006 till:end text:New York Red Bulls (2006–present)

 bar:9  color:Full from:1996 till:2000 text:San Jose Clash (1996–1999)
 bar:9  color:Full from:2000 till:2006 text:San Jose Earthquakes (2000–2005)
 bar:9  color:Full from:2008 till:end text:San Jose Earthquakes (2008–present)

 bar:10  color:Former from:1996 till:2002 text:Tampa Bay Mutiny (1996–2001)

 bar:11  color:Full from:1998 till:end text:Chicago Fire (1998–present)

 bar:12  color:Former from:1998 till:2002 text:Miami Fusion (1998–2001)

 bar:13  color:Former from:2005 till:2015 text:Chivas USA (2005–2014)

 bar:14  color:Full from:2005 till:end text:Real Salt Lake (2005–present)

 bar:15  color:Full from:2006 till:end text:Houston Dynamo (2006–present)

 bar:16  color:Full from:2007 till:end text:Toronto FC (2007–present)

 bar:17  color:Other from:1996 till:2009 text:A / USISL / USL
 bar:17  color:Full from:2009 till:end text:Seattle Sounders FC (2009–present)

 bar:18  color:Full from:2010 till:end text:Philadelphia Union (2010–present)

 bar:19  color:Other from:1996 till:2011 text:A / USISL / USL / D-2
 bar:19  color:Full from:2011 till:end text:Vancouver Whitecaps FC (2011–present)

 bar:20  color:Other from:2001 till:2005 text:A-League (2001-04)
 bar:20  color:Other from:2005 till:2010 text:USL-1 (2005-09)
 bar:20  color:Other from:2009 till:2011 text:D-2 (2010)
 bar:20  color:Full from:2011 till:end text:Portland Timbers (2011–present)

 bar:21  color:Other from:1996 till:1999 text:APSL (1993-94) A-L (1995-98;)
 bar:21  color:Other from:2000 till:2012 text:A-L (2000-04)
 bar:21  color:Other from:2005 till:2009 text:USL-1 (2005-09)
 bar:21  color:Other from:2009 till:2011 text:D-2/ NASL (2010-11)
 bar:21  color:Full from:2012 till:2021 text:Montreal Impact (2012–2020)
 bar:21  color:Full from:2021 till:end text:CF Montréal (2021–present)

 bar:22  color:Other from:2011 till:2015 text:USL (2011–14)
 bar:22  color:Full from:2015 till:end text:Orlando City SC (2015–present)

 bar:23  color:Full from:2015 till:end text:New York City FC (2015–present)

 bar:24  color:Other from:2010 till:2012 text:D-2 (2010)
 bar:24  color:Other from:2012 till:2017 text:NASL (2011-16)
 bar:24  color:Full from:2017 till:end text:Minnesota United FC (2017–present)

 bar:25  color:Full from:2017 till:end text:Atlanta United FC (2017–present)

 bar:26  color:Full from:2018 till:end text:Los Angeles FC (2018–present)

 bar:27  color:Other from:2016 till:2019 text:USL (2016–18)
 bar:27  color:Full from:2019 till:end text:FC Cincinnati (2019–present)

 bar:28  color:Full from:2020 till:end text:Inter Miami CF (2020–present)

 bar:29  color:Other from:2018 till:2020 text: USL / USLC
 bar:29  color:Full from:2020 till:end text:Nashville SC (2020–present)

 bar:30  color:Full from:2021 till:end text:Austin FC (2021–present)

 bar:31  color:Full from:2022 till:end text:Charlotte FC (2022–present)

 bar:32  color:Full from:2023 till:end align:right anchor:till text:St. Louis City SC (2023–present)

 bar:33  color:Full from:2025 till:end align:right anchor:till text:San Diego FC (2025–)

ScaleMajor = gridcolor:line unit:year increment:10 start:1996
TextData =
    fontsize:L
    textcolor:black
    pos:(0,30) tabs:(400-center)
    text:
</timeline>