keyword

when did slavery start and end

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

$ curl "https://app.seodata.dev/v1/keyword?q=when+did+slavery+start+and+end&country=us" +--------------+------------------+ | volume | 1,300 | | cpc | $5.75 | | competition | 0 | | country | US | | updated | 2026-03-31 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
when did slavery start	22,200	$7.41	20/20
slaves in america	12,100	$6.52	18/20
slavery in america	12,100	$6.52	17/20
when did slavery start in america	9,900	$5.82	20/20
how long did slavery last	4,400	$5.58	19/20
who started slavery	4,400	$1.63	19/20
history of slavery in the united states	4,400	$8.99	18/20
how long did slavery last in the united states	4,400	$9.11	18/20
how did slavery start	2,900	$10.27	20/20
why did slavery start	1,300	$16.77	18/20

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+start+and+end&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