Region Badges Over Time

(A region can have two such Badges, mapper and ruler):

Find the region history of WalterBlue.

Isengrim, Trolske, ek95, Saturnglimmer, Body242, DaanVZ, TXL1, Lingonberry, Megachip, Aguti, drii, Barney.vk, blaues_Wunder, Jaroslav, kknkj, Moggus, Kosmokrat, Pieper, Dasm, LeiLar, T-Rex, SzyMarek, Bart23, Bomo, BoF-GB, Jaxel, Ilexa, michixlol, Goldesel, Knuspakex, Derholzspan, Herr_Korn, werla, KlapperKero, Wurm, Schatzforscher, HaraldLegner, Hugosoft, Heisenberg, allerding5nein, Goak, Badger, thorkel, spiceWeazel, DasUmmi, 4N3G4ZPK, QueenOfNowhere, redgate, Gammelsmurf, Nananana, MegaAnt, Loki, Skralg, MasterFlo, vortex23, wuffel, Hunter, carlptr, Ellikatz, Daiten, kredrimi, gotchas, pj007, Corence, Amonamarth, CrazyChris, Kleiner, TrickyFoxy, doinsk, AleksUA, Phii, radvaisin, Gaensebluemchen, manjartens, NasenBaer, nateril, Uschidibb, MCrideordie, Anolis, DI74, Blackcats, jenzanos, shibby_ronson, _yak, augxcgrwxo, Blink67, Bumblebee, olifant, godosoy, Drabr, Flomme, Eule, Coconut99, rabe85, Elianahere, onlineflow, Walkeroi, gokp, windthings, dessek, nirub, gasttor, xwusel, Chmmr, jellybelly, idle, lena_parshina5, Laphroaig, asp_fan_cb, GeHa, Steff, lucy, Tanuki, Usagi91, Mottenmann, Jerk, MyeyesBurn, Nick, Busterania, Svenibeu, VRHero, InI4, Leckmuschel, Saniafeh, Sergeich0, Ardik, Felix11, color_poisoning, 1Test1, loptsky, dorima, Venis, RudiTeam, oldfather