1890 1892

The Number 1891: Properties and Meanings

Prime Factors of 1891=31x61.

1891 is a Triangular Number.

1891 is a Hexagonal Number.

1891 is a Centered Triangular Number.

1891 is a Centered Pentagonal Number.

1891 is a Centered Nonagonal Number.

1891 is a Centered 18-gonal Number.

The Year 1891 AD

In the year 1891 AD there was a Neptune-Pluto conjunction in Gemini.

In the year 1891 AD Jesse W. Reno invented the escalator.

In the year 1891 AD Helena Blavatsky died.(Esoteric History)

In the year 1891 AD Arthur Edward Waite joined the Hermetic Order of the Golden Dawn.(Esoteric History)

1890 1892