September 10, 2018 (30 maps)
Although Metro Map Maker officially launched in September 2017,
I didn't include a created_at field on maps until September 13, 2018.
I made efforts to determine how many maps had been created by those dates based on historical records, but they're only estimates based on the known number of maps on a certain date.
For example, there were 606 maps created by April 11, 2018 (218 days since launch), so I divided those 606 maps roughly evenly across all 218 days.
Stations: 6
Size: 80
Stations: 3
Size: 80
Stations: 13
Size: 80
Stations: 28
Size: 80
Stations: 28
Size: 80
Stations: 21
Size: 80
Stations: 147
Size: 80
Stations: 94
Size: 160
Stations: 93
Size: 160
Stations: 68
Size: 120
Stations: 55
Size: 80
Stations: 48
Size: 120
Stations: 93
Size: 160
Stations: 94
Size: 160
Stations: 0
Size: 80
Stations: 151
Size: 80
Stations: 14
Size: 80
Stations: 0
Size: 80
Stations: 89
Size: 120
Stations: 44
Size: 80
Stations: 31
Size: 80
Stations: 33
Size: 80
Stations: 40
Size: 80
Stations: 32
Size: 80
Stations: 192
Size: 240
Stations: 181
Size: 240
Stations: 175
Size: 240
Stations: 173
Size: 240
Stations: 48
Size: 80
Stations: 29
Size: 80
