GMBR — the Global Mother-tongue Baseline Register
The permanent flagship: the maintained dataset every calculator reads from, kept current as the world's language data shifts.
100% funded
Flagship · ongoing
Fund the Research
Help fund the next honest number
Linguistic Planet's calculators are free because the research behind them is funded by people who believe the world needs an honest map of how languages connect us. This is a quiet third door — no subscription, no product to buy. Just the research, and the option to help it happen.
Progress shown below is illustrative, pending live campaign data.
Deep — sub-national language depth
Push below the country line to map how languages really connect within regions and cities.
62% funded
Timeline: About 12 months
Wide — the long tail of smaller languages
Extend coverage to hundreds of under-counted languages the global datasets routinely miss.
38% funded
Timeline: About 18 months
Human — field validation with native speakers
Check the numbers against lived reality through interviews and community review, not models alone.
74% funded
Timeline: About 9 months
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Prefer to give without picking a single project? Support the work as a whole — one-off, in any amount. We'll direct it where it's needed most.
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Donations fund research only. They are not a subscription and unlock no product tiers, calculators, or paid features — nothing about your account changes. The one perk supporters receive is early access to the research they help fund.
Recurring giving is coming soon; for now every gift is one-off.