This article explores the increasing involvement of the state in science, i
n particular the establishment of a new cabinet-level ministry for science
and technology by 146 countries from 1950 to 1990. As confirmatory analyses
to test hypotheses. I employ event history techniques-piecewise exponentia
l models with period-specific effects. The results show that although inter
nal, functional conditions exerted a positive influence on the adoption rat
e of science ministries during the earlier period (1950-70), institutional
effects have become more influential over time (1971-90). The increasing in
stitutional effects were supported by three findings. First, the baseline f
ounding rate of science ministries during the later period is significantly
higher than that of the earlier period, which indicates that the ministry
of science and technology became an expected and legitimated governmental s
tructure since the late 1960s. Second, the amount of global organizational
discourse on science and national development has a positive and significan
t effect on the founding of science ministries throughout the world in the
later period. Third, direct linkage to international science organizations
and discourse, as measured by the number of memberships of each country in
the International Council of Science Unions (ICSU), strongly affects the fo
unding of science ministries during both periods and even more strongly dur
ing the latter one.