What kind of experiences did the romantics mostly write about?

Romantics mainly wrote about their individual re-connection or experiences with nature and the loss of their childhood.

Explanation:

Romanticism began during the late 18th century till the mid 19th century, both in Europe and America. This movement emphasized the importance of the emotion, man's relationship with nature and spiritual understanding. The works of romantics mainly portrays the sublime, working against the Age of Reason. Instead, it confines itself more on the emotional side of humanity than the reasoning faculty of man, establishing a re-connection of human beings with nature.  

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