Quite a complex idea, but I’m sure you’ll find it inspiring:
Event #1: Tulip Fashion
Trigger: City with Grocer. Obsolete with Corporation
Beatiful breed of tulip was recently cultivated in [City]. It rapidly became a coveted luxury item and a status symbol.
1: I don’t care about flowers very much: +1

for Grocer in [City]
2: Those tulips truly are of great beauty. Why don’t we acquire some of the precious bulbs and invest in this new fashion? : Pay some

. +1

for Grocer in [City]. Chance of looping to Event #2.
Event #2: Tulipomania
Trigger: City with Grocer. Event #1 occured.
The price of rare bulbs rapidly increases. Gardeners and merchants hope to reap benefits from tulipomania in [City].
1: Sell the flowers before the whole thing spirals out of control. : Get some

. IF Event #2 occured before: Grocer loses all

from previous Events #2.
2: Invest further! [City] will become a bustling tulip trade centre known all over the world.: Pay some

. +1

and for Grocer in [City]. Chance of looping back to Event #2 OR Event #3.
Event #3: Bubble Bursts
Trigger: City with Grocer. Event #2 occured.
Catastrophe! With noone willing to buy vastly overpriced bulbs entire tulip market crashes.
1: All that remains is to count our losses. : Grocer is destroyed. Player loses 50% of

from treasury. 3 temporary

in [City].
Comments for Tulip chain of events:
1. They could be Dutch-specific events.
2. You may consider making these events affect several cities empire-wide, to illustrate the spread of Tulip-Mania.
3. It would be great if you could scale the effects of Event #3 in relation to number of instances Event #2 occured.
4. You could add extra options in Event #2. Like extra happiness, free Merchant specialists, more culture, +50% to buildning Grocers in other cities ect. Some of these options could be active only after Event #2 is triggered second or third time.
5. You could add Event #4 about cultivating black tulips. One time surge of

and

and improved relations with other Civs.