If you add this one together it comes to 17

Hundreds of years ago, our calendar was polluted with 297 years which never occurred...

http://io9.gizmodo.com/5801363/infographic-explains-the-phantom-time-hypothesis-in-which-the-middle-ages-never-happened

http://www.thisismoney.co.uk/money/pensions/article-2820805/How-pensions-revolution-land-300-fine.html

301........the "old" darts check out before it went all professional.

302

A unique number.

It is the only number in the known universe that when divided by 1 gives the answer 302...

https://en.wikipedia.org/wiki/No._303_Polish_Fighter_Squadron

I wonder if UKIP were going at this time would they have ranted "Bloody Poles, coming over here pinching our jobs!"

You're right, and I expect the Polish fighter pilots were on the same pay rate as their English counterparts. I doubt if we had too many unemployed English fighter pilots either, so it probably made good sense at the time. We got that one right I think.

If you put 304 in a calculator and turn it upside down it will say "hoe".

305 is the HTTP status code indicating a proxy must be used.

The 307th Bomb Wing is the only reserve unit that operates the Boeing B-52H Stratofortress. The wing employs approximately 1,600 Air Force Reservists in a combination of full-time Active Guard & Reserve (AGR) and Air Reserve Technician (ART) and part-time Traditional Reservist (TR) personnel.

https://en.wikipedia.org/wiki/307th_Bomb_Wing

http://4umi.com/year?308BC

Note under 'Events in 308 BC' it says -

"There are no recorded events this year."

How times have changed...

There is a house for sale in Hove. 309 Dyke Lane.
Not a joke, true.
Dunno who lives there or in that street......