Antoine Lavoisier (26 agos 1743 año – 8 mayo 1794 año)
Descripción:
 Antoine Lavoisier lived in paris, and was executed during the french revolution, because he was blamed of treason.  He discovered oxygen as a necessary component in combustion, and he discovered conservation of matter. 
Añadido al timeline:
fecha:
26 agos 1743 año
8 mayo 1794 año
 ~ 50 years