Decades: 1200s 1210s 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s 1290s 1300s
Years: 1245 1246 1247 1248 1249 - 1250 - 1251 1252 1253 1254 1255
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... for the adsorbption and conversion of light into chemical energy, using chemical pathways with many important intermediates. Photosynthesis has two distinct stages, ...