R-Z18 Geographical Map (last updated: September 11th 2015)
One of the ways to find out more about the history of a haplogroup is to study the more recent distribution of its members. To facilitate this, we've developed a map of Europe with coloured pins indicating the location the Most Distant Ancestor (MDA) was born as reported by our members. The map displays only Europe and people who currently are brickwalled in the US are not displayed on the map (in fact they are, but showing them requires panning to the west). Even for these people the map might well prove to be valuable, as it gives an indication where the origin of other members of the same branch of the R-Z18 tree is and these might give them a first indication of their own origin. (The text is continued after the map)
Please note, currently the map presented above is a static preview of what we are working on. The map is generated by a set of programs that for display make use of the facilities of Google Maps. Originally, the "live" map generated by these programs offers features to "drill down" into the data. (1) If you move the cursor over a pin, then the Kit# and MDA-name are displayed, so as to allow to look up the profile on the corresponding Y-DNA Results Sheet on this site. (2) A map like this contains so many pins that it is hard to clearly see the relationship between profiles in the same branch of the tree. The "live" map therefore allows to select one or more branches of the tree for display, which results in a simplified picture that nevertheless gives much more information. (3) A drawing facility allows one to draw coloured lines on the map, so that it is possible to play with one's own ideas about possible migration routes. We are currently working hard to make the program (and thus the "live" map) available online via this site, but presently the map is static and doesn't offer these dynamic features.
The image below gives an example of the selection facility. In this case all Z18+ Z17- branches are selected, so that the "oldest" branches of R-Z18 are shown. These selected branches are indicated by their description under "pin colours" presented in bold. The "live" version allows any branche of combination of branches to be selected; all other pins turn white (and thus stay visible)
The objective of the static preview is to show our intention and give a preview of the results to date. This will serve as an good illustration, as we intend to ask all our members to review the co-ordinates they've specified for their MDA. One example of the things that can go wrong is the origin that was specified fo a profile in the middle of the North Sea; please note, if you specify a co-ordinate west of Greenwich (and the majority of the British Isles is west of Greenwich) then the Longitude is supposed to be negative (if specified as positive, you'll end up in the North Sea; or call it "Doggersbank" if you want).
As you can see on the map, the origins reported by our members are widely spread over the northern half of Europe. R-Z18 is clearly a group in which a lot of migration has taken place. R-Z18 is well represented in Scandinavia and this part of Europe clearly has played an important role in the history of the group. We know much more about this and we will publish our findings here at a later date.
Nearly all pins are visible; there is one origin reported by the owner of kit N118662-Jonsen in Northern Norway, that unfortunately has "fallen off" the map (we haven't forgotten about it). Please consider this page, and the maps presented, as a work in progress. We are aware while we were working on it a few locations were updated and some of these updated location might well be displayed according to their previous setting. This will be repaired in the next version.