Niels Bohr: What did he contribute to the Atomic Theory?

This week, we have learned the about different scientists that have contributed to the development of the atomic theory to conclude the various parts of the atom. Niels Bohr contributed the idea that electrons orbit around the nucleus in different energy levels. Here is a prezi made be me and my chemistry partners, Lucia Hasfura (http://lhasfurachemistry.blogspot.com/)  and Adriana Guevara (http://adriguevarachemistry.blogspot.com/) about Niels Bohrs and his life, career, theories, discoverings and contributions to the Atomic Theory. 
Here is our prezi: Neils Bohr Prezi