September 11, 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: 71
Size: 80
Stations: 62
Size: 80
Stations: 28
Size: 80
Stations: 45
Size: 80
Stations: 90
Size: 80
Stations: 81
Size: 120
Stations: 15
Size: 80
Stations: 15
Size: 80
Stations: 29
Size: 80
Stations: 60
Size: 120
Stations: 51
Size: 120
Stations: 50
Size: 120
Stations: 14
Size: 80
Stations: 14
Size: 80
Stations: 12
Size: 80
Stations: 12
Size: 80
Stations: 12
Size: 80
Stations: 22
Size: 80
Stations: 76
Size: 120
Stations: 10
Size: 80
Stations: 2
Size: 80
Stations: 29
Size: 80
Stations: 29
Size: 80
Stations: 30
Size: 120
Stations: 10
Size: 80
Stations: 49
Size: 120
Stations: 234
Size: 160
Stations: 41
Size: 80
Stations: 40
Size: 80
Stations: 8
Size: 80
