Historicorhistorical?

Historicmeans ‘importantor likely to be important in history’:

I feel that this is ahistoricmoment for our country.

When the Berlin wall came down, it was ahistoricoccasion.

Historicalmeans ‘related to the study of things from the past’:

I love readinghistoricalnovels.

Archaeologists found a large number ofhistoricalobjects when they excavated the field.