Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Robert Cornelius

Robert Cornelius (/kɔːrˈniːliəs/; March 1, 1809 – August 10, 1893) was an American photographer and pioneer in the history of photography. His daguerreotype self-portrait taken in 1839 is generally accepted as the first known photographic portrait of a person taken in the United States, the second in the world, and a significant achievement for…

Career, Measurement & Companies

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Robert Cornelius. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Born
(1809-03-01)March 1, 1809 Philadelphia, Pennsylvania, U.S.
Children
8
Died
August 10, 1893(1893-08-10) (aged 84) Philadelphia, Pennsylvania, U.S.
Occupations
Photographer · businessman · manufacturer
Resting place
Laurel Hill Cemetery, Philadelphia, Pennsylvania, U.S.

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Life and career

Personal life

Daguerreotypes by Cornelius

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Robert Cornelius

Nodes32
Edges31
Triples22
Avg. degree1.94
Density0.0625
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Robert Cornelius

Top relations

related to Daguerreotypes by Cornelius · 14
Robert Cornelius → Beck Goddard, Cornelius, December, Grandma Toppan, Group, Hans Boyè, John McAllister Jr, March, Market Street, May, Philadelphia, Stephen Du Ponceau, The, Unidentified Woman
Occupations · 3
Robert Cornelius → businessman, manufacturer, Photographer
Born · 1
Robert Cornelius → (1809-03-01)March 1, 1809 Philadelphia, Pennsylvania, U.S.
Children · 1
Robert Cornelius → 8
Died · 1
Robert Cornelius → August 10, 1893(1893-08-10) (aged 84) Philadelphia, Pennsylvania, U.S.
Resting place · 1
Robert Cornelius → Laurel Hill Cemetery, Philadelphia, Pennsylvania, U.S.
Spouse · 1
Robert Cornelius → .mw-parser-output .marriage-line-margin2px{line-height:0;margin-bottom:-2px}.mw-parser-output .marriage-line-margin3px{line-height:0;margin-bottom:-3px}.mw-parser-output .marria…

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

cornelius lamp philadelphia photography united states 1840 1839 daguerreotype studio first self-portrait taken american photographic portrait time portraits cornelius' photographer

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Robert CorneliusBorn(1809-03-01)March 1, 1809 Philadelphia, Pennsylvania, U.S.1.00infobox
Robert CorneliusChildren81.00infobox
Robert CorneliusDiedAugust 10, 1893(1893-08-10) (aged 84) Philadelphia, Pennsylvania, U.S.1.00infobox
Robert CorneliusOccupationsPhotographer1.00infobox
Robert CorneliusOccupationsbusinessman1.00infobox
Robert CorneliusOccupationsmanufacturer1.00infobox
Robert CorneliusResting placeLaurel Hill Cemetery, Philadelphia, Pennsylvania, U.S.1.00infobox
Robert CorneliusSpouse.mw-parser-output .marriage-line-margin2px{line-height:0;margin-bottom:-2px}.mw-parser-output .marriage-line-margin3px{line-height:0;margin-bottom:-3px}.mw-parser-output .marria…1.00infobox
Robert Corneliusrelated to Daguerreotypes by CorneliusGroup0.60section
Robert Corneliusrelated to Daguerreotypes by CorneliusCornelius0.60section
Robert Corneliusrelated to Daguerreotypes by CorneliusBeck Goddard0.60section
Robert Corneliusrelated to Daguerreotypes by CorneliusDecember0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.