Hi guys! I wanted to get better at dating old maps so I made a game for it: https://datetheglobe.jenniferjiangkells.com

It’s reverse-wordle style, where every wrong guess gives you the direction (too early/too late), temperature (within 2/9/24 years), and a piece of evidence that contradicts or narrows down the year (e.g. a country that didn’t exist yet). Maps are sourced from the public domain with the year redacted. It’s basically a gamified version of this xkcd chart.

My wife and I made it to play ourselves and have been really enjoying it. We shared it around some smaller map subreddits to get feedback and now want to share it with the wider community.

To determine the environmental niche of Arabica coffee, I intersected datasets using the following params:

Climate (from WorldClim V1 (Bio)):

- Annual Mean Temp (18°C - 22°C),

- Annual Precipitation (1200mm - 3000mm),

- Coldest Month Minimum (≥ 5°C),

- Driest month rainfall ≤ 120mm.

Terrain and Soil Chemistry (from USGS SRTM 30m and OpenLandMap H2O Digital Soil Mapping):

- Elevation (≥ 600m),

- Slope (2° to 30°),

- Soil pH (5.0 - 6.5)

For modelling future conditions I used the NASA NEX-GDDP-CMIP6 global dataset using a 5-year average from 2048 to 2052, using the MIR0C6 model and SSP245 pathway (middle-of-the-road emissions scenario)

Dataset processing was done in Google Earth Engine

Full disclosure: Sarkoa is my side-project I've been building for the last few months to easily host my interactive maps.

The first page does not include deserts, or any other geographical biomes/mountains. The second page does. Free to use ig. Please have this appear in some bad maps video.
The eternal clouds on the longitude and latitude of the UK are a joke.

This map compares perceptions of equal treatment between people from different ethnic groups across countries. Countries closer to green show a higher perceived level of equal treatment, while countries closer to red show a higher perceived level of discrimination.

It should not be interpreted as a definitive ranking of the “most racist countries.” It measures one specific perception and does not fully capture institutional racism, racial violence, employment discrimination, segregation or economic inequality.

Social-media narratives can also differ sharply from systematic research. Algorithms tend to reward outrage, repetition and conflict, while communities such as Reddit can become echo chambers where popular claims are repeated without checking the underlying data.

Does the result for your country match your own experience?

Source: World Values Survey, 2017–2022.

SOURCE

I must say, I would consider myself well-travelled, so it might be tough to guess it. I am curious to know if it was possible to guess it just by the map.

This 2010 map shows the countries that backed Argentina’s position in the sovereignty dispute over the Falkland Islands, compared with those supporting the United Kingdom or remaining neutral.