\documentclass{article}
\usepackage{chronology}
\begin{document}
\begin{chronology}[5]{1983}{2010}{10cm}[7cm]
\event{1984}{\color{blue}{one}}
\event[1985]{1986}{\small{two}}
\event{\decimaldate{25}{12}{2001}}{\huge{three}}
\end{chronology}
\vspace{5cm}

\begin{chronology}*[5]{1983}{2010}{10cm}
\event{1984}{\color{blue}{one}}
\event[1985]{1986}{\small{two}}
\event{\decimaldate{25}{12}{2001}}{\huge{three}}
\end{chronology}
\vspace{5cm}

\begin{chronology}[5]{1983}{2010}{10cm}[13cm]
\event{1984}{\color{blue}{one}}
\event[1985]{1986}{\small{two}}
\event{\decimaldate{25}{12}{2001}}{\huge{three}}
\end{chronology}
\end{document}