"The last Kreutz Sungrazer to become bright was Comet White-Ortiz-Bolelli in 1970. It is not possible to estimate the chances of another very bright Kreutz comet arriving in the near future, but given that at least 10 have reached naked eye visibility over the last 200 years, another great comet from the Kreutz family seems almost certain to arrive at some point."
The Great Comet of 1843 was followed by two in 1884, a forty-one year interval. The last big Kreutz comet, Comet Ikeya-Seki, was in 1965. 41 + 1965 = 2006. Anyone want to start playing the Twilight Zone music?
oh boy.. now you got me wondering.