\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage{blindtext}
\usetheme{wuppertal}
\title{Title}
\author{Author}
\date{\today{}}
\begin{document}
\begin{frame}[plain]{}
\maketitle
\end{frame}
\begin{frame}{Some Blindtext}
\blindtext
\end{frame}
\begin{frame}{Some Items}
\begin{itemize}
\item Item 1
\item Item 2
\item Item 3
\begin{itemize}
\item Subitem 1
\item Subitem 2
\end{itemize}
\end{itemize}
\begin{enumerate}
\item Number 1
\item Number 2
\end{enumerate}
\end{frame}
\section{Introduction}
\end{document}
