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Figure 1 (timeline of the Anno Domini era)

 

(time in years)                                                             *  year 1  1  year 2  2  year 3  3   

 

in which  year x  = the year x of our era = the year x after Christ.

 

Figure 2 (timeline of the Christian era)

 

(time in years)    ‑3 year ‑3 ‑2 year ‑2 ‑1 year ‑1 0  year 1  1  year 2  2  year 3  3   

 

in which moreover year ‑x = the year ‑x of our era = the year x before Christ.

 

Figuur 3 (timeline of the astronomical era)

 

(time in years)    ‑3 year ‑2 ‑2 year ‑1 ‑1 year 0  0  year 1  1  year 2  2  year 3  3   

 

in which  year x  = year x of our era if and only if x > 4.

 

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