seodata.dev

keyword

when was sign language invented

Monthly search volume and cost-per-click data for "when was sign language invented" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=when+was+sign+language+invented&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-08-16 | +--------------+------------------+
All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
who invented sign language 1,900 $0 20/20
who invented the sign language 1,900 $0 20/20
who developed sign language 1,900 $0 15/20
when was sign language developed 1,600 $0 20/20
when sign language was invented 1,600 $0 19/20
asl history 1,300 $0.12 18/20
american sign language history 1,300 $0.12 16/20
history of american sign language 1,300 $0.12 16/20
invention of sign language 110 $0 16/20
how was sign language invented 70 $0 16/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=when+was+sign+language+invented&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt