Layer Estimates:

Layer: 1_Historical Places (ID:0)
Count: 16
Extent:

XMin: -4764525.8381
YMin: 3973851.0856
XMax: 3506185.2143
YMax: 10465391.8286
Spatial Reference: 102100 (3857)

Layer: 2_Sources (ID:1)
Count: 4
Extent:

XMin: -199910.544100001
YMin: 5994756.3974
XMax: 3887665.5177
YMax: 7494656.6133
Spatial Reference: 102100 (3857)

Layer: 3_European_Castles (ID:2)
Count: 30
Extent:

XMin: -528099.664323285
YMin: 5024754.31980694
XMax: 2388793.82098378
YMax: 7853670.31233055
Spatial Reference: 102100 (3857)

Layer: 4_Invasion Routes (ID:3)
Count: 49
Extent:

XMin: -1361769.24162604
YMin: 3564006.3143
XMax: 5288788.40354022
YMax: 8390341.5213
Spatial Reference: 102100 (3857)

Layer: 5_Homelands (ID:4)
Count: 3
Extent:

XMin: -1100787.1475
YMin: 1413847.1118
XMax: 8225528.9989
YMax: 10849422.3794
Spatial Reference: 102100 (3857)

Layer: 6_Viking Settlements & Raids (ID:5)
Count: 349
Extent:

XMin: -6125628.2933
YMin: 3569320.9365
XMax: 6211137.9595
YMax: 11459019.7566
Spatial Reference: 102100 (3857)

Layer: 7_Historical_Places_Labels (ID:6)
Count: 48
Extent:

XMin: -5323879.4201
YMin: 3885201.43
XMax: 4382472.0779
YMax: 10520713.2028
Spatial Reference: 102100 (3857)

Layer: 8_Invasion_Routes_Arrows (ID:7)
Count: 3
Extent:

XMin: -1363981.73240138
YMin: 3561304.75289223
XMax: 5298236.78521596
YMax: 8418858.61006119
Spatial Reference: 102100 (3857)