ELECTRONIC	h a r v a r d dot e   d   u   s l a s h   h i s t o r y   s l a s h   t i m e l i n e   s l a s h   i n d e x dot h t m l h i s t o r y	h a r v a r d dot e   d   u   s l a s h   h i s t o r y   s l a s h   t i m e l i n e   s l a s h   i n d e x dot h t m l h i s t o r y	1