Variable
is_in_columbian_exchange
 Columbian Exchange | on_monthly | Set to Yes |
| Columbian Exchange | on_start | Set to Yes |
Checked by 1
- Columbian ExchangeMap color, After it ends…
Set by 1
- Columbian ExchangeEach month, When it starts
Cleared by 1
- Columbian ExchangeAfter it ends