Historical event · August 7, 1944
The Mark I Computer (1944)
Delivered to Harvard in 1944, the IBM Automatic Sequence Controlled Calculator, later called the Mark I, was designed by Howard Aiken and built by IBM for automatic calculation.
Why it matters
The public graph currently connects The Mark I Computer (1944) to 2 other reviewed records, preserving the type of each civic relationship.
Open the full civic recordCurrent pulse, routes, recommendations, and memory
Turn this into a walk
Routes with a point of view
What should I see next?
Chosen moves from here
The editor's hand
Human recommendations
Civic memory
What this meant before
- Date
- August 7, 1944
- Public connections
- 2
- Sources
- 2
In the public graph 2 typed relationships
Explore The Mark I Computer (1944) in the interactive Graph Explorer →Associated with
Located in
Nearby what sits within a few minutes’ walk
Building / Landmark · 3 min walk
Memorial Hall
Museum / Cultural · 5 min walk
Harvard Art Museums
University · 6 min walk
Harvard University
Historical context
An unexpected connection
The Mark I Computer (1944) is linked, through the graph, to Cambridge — city, 8 min walk away. The kind of thread you only find by following the connections.
Keep exploring graph-powered — every path below is a real relationship, not a guess
NearbyA few minutes’ walk away
More historical eventsOther historical events in the graph
Visitors also exploreReached through the same connections
One identity, 3 editorial lenses one canonical entity URL
How we know graph confidence — we explain our certainty, not just assert it
✓Source qualityBest source is primary / institutional
✓Independent corroboration2 resolvable sources
✓Review stateReview attributed to durjoy-ace-campus-editor
✓Institutional backingCites a primary or institutional source
✓Record completeness80% of canonical fields present
Sources, by tier
Harvard IBM Mark I: About Primary / institutional
Harvard University Primary / institutional
Review date: 2026-08-23
Graph scores — our north star is relationship density, not page count
Relationship density25
2 connections
Record coverage66
metadata completeness
Graph authority62
centrality + reach + trust
Schema.org JSON-LD — what answer engines read
{
"@context": {
"@vocab": "https://schema.org/",
"civic": "https://thecivicgraph.org/ns/graph#"
},
"@graph": [
{
"@type": "Event",
"@id": "https://harvard400.com/e/mark-i-1944",
"name": "The Mark I Computer (1944)",
"description": "Delivered to Harvard in 1944, the IBM Automatic Sequence Controlled Calculator, later called the Mark I, was designed by Howard Aiken and built by IBM for automatic calculation.",
"url": "https://harvard400.com/e/mark-i-1944",
"mainEntityOfPage": {
"@type": "WebPage",
"@id": "https://harvard400.com/e/mark-i-1944"
},
"geo": {
"@type": "GeoCoordinates",
"latitude": 42.3782,
"longitude": -71.1149
},
"startDate": "1944",
"citation": [
{
"@type": "CreativeWork",
"name": "Harvard IBM Mark I: About",
"url": "https://chsi.harvard.edu/harvard-ibm-mark-1-about",
"publisher": {
"@type": "Organization",
"name": "Harvard Collection of Historical Scientific Instruments"
}
},
{
"@type": "CreativeWork",
"name": "Harvard University",
"url": "https://www.harvard.edu/"
}
],
"civic:associated_with": {
"@id": "https://harvard400.com/e/harvard-university"
},
"containedInPlace": {
"@id": "https://cambridge400.com/e/cambridge"
},
"relatedLink": [
"https://harvard400.com/e/harvard-university",
"https://cambridge400.com/e/cambridge"
]
},
{
"@type": "CollegeOrUniversity",
"@id": "https://harvard400.com/e/harvard-university",
"name": "Harvard University",
"url": "https://harvard400.com/e/harvard-university"
},
{
"@type": "City",
"@id": "https://cambridge400.com/e/cambridge",
"name": "Cambridge",
"url": "https://cambridge400.com/e/cambridge"
}
]
}