المعرفة:قائمة القرون

الألفية	القرن
الرابعة ق.م:	40th BC	39th BC	38th BC	37th BC	36th BC	35th BC	34th BC	33rd BC	32nd BC	31st BC
الثالثة ق.م:	30th BC	29th BC	28th BC	27th BC	26th BC	25th BC	24th BC	23rd BC	22nd BC	21st BC
2nd BC:	20th BC	19th BC	18th BC	17th BC	16th BC	15th BC	14th BC	13th BC	12th BC	11th BC
الأولى ق.م:	10th BC	9th BC	8th BC	7th BC	6th BC	5th BC	4th BC	3rd BC	2nd BC	1st BC
الأولى:	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
الثانية:	11th	12th	13th	14th	15th	16th	17th	18th	19th	20th