How old was Paul Carus when Pierre Trudeau was born?

What was the age (length of time since creation) of Paul Carus, Ph. D. (1852‑1919), the German-American editor, born at Ilsenburg, Germany, and educated at the universities of Strassburg and Tübingen at the time Joseph Philippe Pierre Yves Elliott Trudeau PC CC CH QC FRSC, the fifteenth Prime Minister of Canada from 20 April, 1968 to 4 June, 1979, and from 3 March, 1980 to 30 June, 1984 is born on (has as his or her date of birth)?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
October 18th 1919 is the birthdate of Pierre Trudeau ([fact: ["18791007@trueknowledge.com"]])

July 18th 1852 is the birthdate of Paul Carus ([fact: ["880637976@trueknowledge.com"]])

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: 67 years, 3 months and 0 days old is the age of Paul Carus

Fact 1 is true at October 18th 1919

By calculation (generator: ["applies_at_timepoint@trueknowledge.com"]) I know that:
Fact 1 is true at October 1919

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: 67 years, 3 months and 0 days old is a age

Fact 1: 67 years, 3 months and 0 days old applies to Paul Carus

Fact 1 is true at October 18th 1919

I know from locally stored knowledge that:
1852 is the birthdate of Paul Carus ([fact: ["18142454@trueknowledge.com"]])

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: between 66 years and 10 months and 67 years and 9 months old is the age of Paul Carus

Fact 1 is true at October 18th 1919

By calculation (generator: ["applies_at_timepoint@trueknowledge.com"]) I know that:
Fact 1 is true at October 1919

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: between 66 years and 10 months and 67 years and 9 months old is a age

Fact 1: between 66 years and 10 months and 67 years and 9 months old applies to Paul Carus

Fact 1 is true at October 18th 1919

By calculation (generator: ["ismoreaccurate1@trueknowledge.com"]) I know that:
October 18th 1919 is a more accurate version of October 1919

I used the following facts to provide this answer:

October 18th 1919 is the birthdate of Pierre Trudeau

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July 18th 1852 is the birthdate of Paul Carus

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1852 is the birthdate of Paul Carus

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