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keyword

when did slavery first start ever

Monthly search volume and cost-per-click data for "when did slavery first start ever" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+did+slavery+first+start+ever&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0.07 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
when did slavery began 22,200 $12.81 11/20
when did slavery started 22,200 $7.03 11/20
when did black slavery start 9,900 $5.07 13/20
slavery origin 3,600 $12.87 11/20
how did slavery begin 2,900 $8.66 15/20
how slavery started 2,900 $8.66 14/20
slavery throughout history 880 $7.08 11/20
slavery history in the world 320 $9.56 12/20
when did slavery begin in history 40 $0 11/20
when did slavery start and end in africa 20 $0 11/20

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://app.seodata.dev/v1/keyword?q=when+did+slavery+first+start+ever&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt