Subjects: CALENDARS (Publications); METEOR showers; ASTRONOMICAL observations
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Subjects: CALENDARS (Publications); SCIENCE conferences; EXHIBITIONS
Subjects: CALENDARS (Publications); CONFERENCES & conventions; CONTESTS
Subjects: CALENDARS (Publications); MEETINGS; MATHEMATICS
Subjects: CALENDARS (Publications); PALEONTOLOGISTS; PALEONTOLOGY
Subjects: CALENDARS (Publications); BODYBUILDING competitions; CONTESTSCALIFORNIA; ILLINOIS; TEXAS
Subjects: CALENDARS (Publications); CONTESTS
Subjects: CALENDARS (Publications); BODYBUILDING competitions; PHYSICAL fitnessUNITED States