  Comparison of the old observations of Cepheids in the Small Magellanic Cloud
from the Harvard data archive, with the recent OGLE and ASAS observations
allows an estimate of their period changes. All of matched 557 Cepheids are
still pulsating in the same mode. One of the Harvard Cepheid, HV 11289, has
been tentatively matched to a star which is now apparently constant. Cepheids
with log P > 0.8 show significant period changes, positive as well as negative.
We found that for many stars these changes are significantly smaller than
predicted by recent model calculations. Unfortunately, there are no models
available for Cepheids with periods longer than approximatelly 80 days, while
there are observed Cepheids with periods up to 210 days.
