This is my one thousandth post since starting this blog. Sadly the quality has varied but it's been enjoyable for the most part.
NB 1000 (one thousand) is the natural number following 999 and preceding 1001. The letter 'A' does not appear in the English spelling of any positive integer lower than "one thousand".
The decimal representation for one thousand is
1,000 — a one followed by three zeros, in the general notation;
1 × 103 — in engineering notation
1,000 — a one followed by three zeros, in the general notation;
1 × 103 — in engineering notation
The SI prefix for a thousand is kilo-, officially abbreviated as k — eg kilometre (km) signifies a thousand metres; technically oriented people occasionally represent the number in a non-standard notation by replacing the last three zeroes with "k", for instance 30 k for 30,000
In money terms some refer to £1000 as 1 grand.
A thousand years is a millennium (from Latin mille, thousand, and annum, year). The term can refer to an interval of time beginning on any date. Frequently in the latter case (and sometimes also in the former) it may have religious or theological implications. Especially in religious usage such an interval may be interpreted less precisely, being not necessarily exactly 1,000 years long.
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