# Credits

## Data

All categorical data comes from [D-PLACE](https://d-place.org) (license: CC BY-NC 4.0). All location data comes from [Glottolog](https://glottolog.org) (license: CC BY 4.0). See [LICENSING.md](LICENSING.md).

The data uses these D-PLACE variables:

* [SCCS6](https://d-place.org/parameters/SCCS6) and [SCCS10](https://d-place.org/parameters/SCCS10): Murdock, G. P., & Morrow, D. O. (1970). Subsistence economy and supportive practices: Cross-cultural codes 1. *Ethnology*, 9(3), 302-330.
* [SCCS238](https://d-place.org/parameters/SCCS238): Murdock (1962-1971); Gray (1999).
* [SCCS2002](https://d-place.org/parameters/SCCS2002): Rosenblatt, P. C., Walsh, R. P., & Jackson, D. A. (2011). Grief and mourning codes. *World Cultures eJournal*, 18(2).

Glottolog: Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Bank, Sebastian. 2021. Glottolog 4.4. Leipzig: Max Planck Institute for Evolutionary Anthropology. <https://doi.org/10.5281/zenodo.4761960> (accessed 2021-10-24).

## Map icons

The icons in [assets/icons](assets/icons) come from [the Noun Project](https://thenounproject.com). They have a [Creative Commons 3.0 (CC BY 3.0 US)](https://creativecommons.org/licenses/by/3.0/us/legalcode) license.

| Icon | Author | Source |
| --- | --- | --- |
| Chicken | Symbolon | <https://thenounproject.com/icon/3263718/> |
| Reindeer | BomSymbols | <https://thenounproject.com/icon/1377398/> |
| Camel | Doodle Icons | <https://thenounproject.com/icon/4338923/> |
| Sheep | KonKapp | <https://thenounproject.com/icon/4340274/> |
| Cow | KonKapp | <https://thenounproject.com/icon/4340287/> |
| Horse | KonKapp | <https://thenounproject.com/icon/4340278/> |
| Pig | KonKapp | <https://thenounproject.com/icon/4340286/> |

## Images

Both header images have the [Pixabay license](https://pixabay.com/service/license/).

* `assets/images/cows.jpg`: [photo](https://pixabay.com/photos/cows-cattle-grazing-mammals-203460/) by [Pixel-Sepp](https://pixabay.com/users/pixel-sepp-69900/).
* `assets/images/clustering.jpg`: [photo](https://pixabay.com/photos/maps-pages-papers-vintage-1854199/) by [Pexels](https://pixabay.com/users/pexels-2286921/).

## Software

* [Folium](https://python-visualization.github.io/folium/) (maps). MIT License, copyright Rob Story.
* [Branca](https://github.com/python-visualization/branca) (legends). MIT License, copyright Martin Journois.
* [pandas](https://pandas.pydata.org) (data). The pandas development team. *pandas-dev/pandas: Pandas*. Zenodo. <https://doi.org/10.5281/zenodo.3509134>. McKinney, W. (2010). Data structures for statistical computing in Python. *Proceedings of the 9th Python in Science Conference*, 445.
* [kmodes](https://github.com/nicodv/kmodes) (clustering). MIT License, copyright Nico de Vos.
* [seaborn](https://seaborn.pydata.org) (charts). Waskom, M. L. (2021). seaborn: statistical data visualization. *Journal of Open Source Software*, 6(60). <https://doi.org/10.21105/joss.03021>.
* [Matplotlib](https://matplotlib.org) (charts). Hunter, J. D. (2007). Matplotlib: A 2D graphics environment. *Computing in Science & Engineering*, 9(3).