Decades: 290s BC 280s BC 270s BC 260s BC 250s BC - 240s BC - 230s BC 220s BC 210s BC 200s BC 190s BC
Years: 247 BC 246 BC 245 BC 244 BC 243 BC - 242 BC - 241 BC 240 BC 239 BC 238 BC 237 BC
... formula is C6H8O7 and the structure is
O H C H O
\\ | | | //
C - C - C - C - C ...
Buy Halloween Costumes
Kids.Net.Au - kids safe portal for children, parents, schools and