SO moderator timeline, from a template by Najib Idrissi. See http://meta.stackoverflow.com/a/311059

SOmods.tex

\documentclass[tikz]{standalone}   % last update March 2016
\usepackage[utf8]{inputenc} 
\usepackage[T1]{fontenc}
\title{Moderator chart}
\begin{document}
\definecolor{rows}{rgb}{0.95,0.95,0.95}
\definecolor{myblue}{rgb}{0.1,0.3,0.9}
\definecolor{mypurple}{rgb}{0.5,0.3,0.7}
\begin{tikzpicture}[scale=0.5]
% 1 horizontal unit = 1 month, 0 = january 2010
  % "present" = 65 = May 2016  (two months into the future)
  \foreach \i in {1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37}
  {
    \fill[color=rows] (0,\i+1) rectangle (103,{\i+2});
  }
\foreach \i in {6,9,16,17,18,19,22,23,24,28,30,31,32,33,34,35,36,37,38}
  {
    % for cosmetic reasons I extended beyond present with a gradient for
    % current moderators
    % this has to be drawn BEFORE the black lines
    \shade [left color=myblue, right color=white] (92,\i) rectangle (95,{\i+1});
  }
  \foreach \mod/\mtha/\yra/\mthb/\yrb/\i in
{Marc Gravell/6/10/11/15/1,  Tim Post/3/13/11/15/8,  Adam Lear/1/12/11/15/12,  
animuson/3/15/11/15/25, bluefeet/6/15/11/15/26}
  {
   \shade [left color=mypurple, right color=white] (92,\i) rectangle (95,{\i+1});
  }  
  
  % format : moderator name/month start/year start/month end/year end
  % months start at 1, year 0 = 2000
 
   \foreach \mod/\mtha/\yra/\mthb/\yrb/\i in
{Marc Gravell/6/10/3/16/1,  Tim Post/3/13/3/16/8,  Adam Lear/1/12/3/16/12,  
animuson/3/15/3/16/25, bluefeet/6/15/3/16/26}
  {
    \fill[fill=mypurple]
    ({\mtha + 12*(\yra-8.5) - 1}, \i) rectangle
    ({\mthb + 12*(\yrb-8.5) - 1}, {\i+1});
    \draw (0, \i) -- (103, \i);
  }
 
 
 \foreach[count=\i] \mod/\mtha/\yra/\mthb/\yrb in
{Marc Gravell/5/9/6/10,               
Bill the Lizard/5/9/4/15,
Gumbo/2/10/11/11,
Jonathan Sampson/2/10/3/13,
Will/7/10/7/13,
Michael Myers/7/10/3/16,   %  continuing
SLaks/2/11/11/11,
Tim Post/2/11/3/13,                   
Robert Harvey/2/11/3/16,   % 
Lasse V. Karlsen/5/11/3/13,
Kev/5/11/5/13,
Adam Lear/11/11/1/12,              
NullUserException/11/11/2/14,
jjnguy/11/11/2/14,
casperOne/11/11/11/15,
BoltClock/11/11/3/16,        % 
Brad Larson/6/12/3/16,       % 
ThiefMaster/6/12/3/16,       % 
George Stocker/6/12/3/16,    % 
Andrew Barber/3/13/3/15,
Gordon/3/13/11/15,
Flexo/3/13/3/16,              %
ChrisF/3/13/3/16,              %
minitech/5/13/3/16,           %
animuson/7/13/3/15,                  
bluefeet/2/14/6/15,                 
0x7fffffff/2/14/3/16,          
Bohemian/2/14/3/16,           %
Jeremy Banks/4/15/11/15, 
meagar/4/15/3/16,             % 
Martijn Pieters/4/15/3/16,    %
Matt/6/15/3/16,               %
Jon Clements/6/15/3/16,       % 
Ed Cottrell/11/15/3/16,       %
josilber/11/15/3/16,          %
Madara Uchiha/11/15/3/16,     %
Undo/3/16/3/16,               %
TheLostMind/3/16/3/16         %
}     %
  {
    \draw (5, {\i+0.5}) node {\mod};   
    \draw (98, {\i+0.5}) node {\mod};  
    \fill[fill=myblue]
    ({\mtha + 12*(\yra-8.5) - 1}, \i) rectangle
    ({\mthb + 12*(\yrb-8.5) - 1}, {\i+1});
    \draw (0, \i) -- (103, \i);
  }

  \foreach \txt/\x in
  {May 2009/10, May 2010/22, May 2011/34, May 2012/46, May 2013/58,
  May 2014/70, May 2015/82}
  {
    \draw (\x, 0) node {|} node[below=0.3cm] {\txt};
  }
\end{tikzpicture}
\end{document}