It isn’t clear whether the missing event should fill in a space “in a timeline,” since they seem mixed up to me, which leaves too many options (and no missing number). Clarification would help!
1 Winter Event
2 Forge Bowl
3 Fall Event (Bake-off in 2019)
4 Archaeology Event
5 Cherry Blossom Event
6 Spring Event
7 St Patrick’s
8 Halloween
9 Summer Event, Soccer Cup, Valentine’s Day