<P> The National Hurricane Center's Best Track Change Committee has approved changes for a few recent cyclones, such as Hurricane Andrew . Official changes to the Atlantic hurricane database are approved by the National Hurricane Center Best Track Change Committee . Thus research conducted by Chris Landsea and colleagues as part of the Atlantic hurricane database reanalysis project are submitted through this review process . Not all Landsea's recommendations are accepted by the Committee . </P> <Table> <Tr> <Th> Period </Th> <Th> Seasons </Th> <Th> Individual years </Th> </Tr> <Tr> <Td> Pre-19th century </Td> <Td> Pre-17th century (pre 1600), 17th century (1600s), 18th century (1700s) </Td> <Td> 1780 </Td> </Tr> <Tr> <Td> 1800--1849 </Td> <Td> 1800--1809, 1810--1819, 1820--1829, 1830--1839, 1840--1849 </Td> <Td> 1842 </Td> </Tr> </Table> <Tr> <Th> Period </Th> <Th> Seasons </Th> <Th> Individual years </Th> </Tr> <Tr> <Td> Pre-19th century </Td> <Td> Pre-17th century (pre 1600), 17th century (1600s), 18th century (1700s) </Td> <Td> 1780 </Td> </Tr>

When was the last time there was 3 hurricanes in the atlantic