1 00:00:07,759 --> 00:00:11,200 remarkable progress in scientific 2 00:00:10,000 --> 00:00:13,440 research was made 3 00:00:11,200 --> 00:00:17,359 in the medieval islamic world in a short 4 00:00:13,440 --> 00:00:19,760 period of time the islamic world became 5 00:00:17,359 --> 00:00:22,000 a center of research and scholarship 6 00:00:19,760 --> 00:00:24,960 with religion playing a key factor in 7 00:00:22,000 --> 00:00:28,000 supporting the pursuit of knowledge 8 00:00:24,960 --> 00:00:29,119 in fact religion and science often went 9 00:00:28,000 --> 00:00:31,279 hand in hand 10 00:00:29,119 --> 00:00:32,239 with scholars often serving as both 11 00:00:31,279 --> 00:00:36,079 scientific 12 00:00:32,239 --> 00:00:36,880 and religious leaders muslim rulers 13 00:00:36,079 --> 00:00:38,879 themselves 14 00:00:36,880 --> 00:00:42,079 often funded observatories and 15 00:00:38,879 --> 00:00:44,239 scientific studies 16 00:00:42,079 --> 00:00:45,360 islam's encouragement of reasoning 17 00:00:44,239 --> 00:00:47,840 acquiring knowledge 18 00:00:45,360 --> 00:00:49,039 and studying nature led to the golden 19 00:00:47,840 --> 00:00:51,600 age of islam 20 00:00:49,039 --> 00:00:53,039 a period of economic cultural and 21 00:00:51,600 --> 00:00:56,239 scientific flourishing 22 00:00:53,039 --> 00:00:58,480 between the 8th and the 15th centuries 23 00:00:56,239 --> 00:00:59,680 there are many verses in the quran which 24 00:00:58,480 --> 00:01:02,399 encourage logic 25 00:00:59,680 --> 00:01:03,440 reasoning learning seeking knowledge and 26 00:01:02,399 --> 00:01:05,920 studying nature 27 00:01:03,440 --> 00:01:07,119 as a sign of god's creation and power 28 00:01:05,920 --> 00:01:09,520 for example 29 00:01:07,119 --> 00:01:10,840 the first revealed verse in the quran 30 00:01:09,520 --> 00:01:14,080 says 31 00:01:10,840 --> 00:01:15,360 read in the name of thy lord who created 32 00:01:14,080 --> 00:01:18,240 man from a clot 33 00:01:15,360 --> 00:01:19,759 read and thy lord is the most generous 34 00:01:18,240 --> 00:01:23,439 who taught by the pen 35 00:01:19,759 --> 00:01:25,360 taught man that which he knew not 36 00:01:23,439 --> 00:01:27,040 ideas of reason and seeking to 37 00:01:25,360 --> 00:01:30,079 understand the world around you 38 00:01:27,040 --> 00:01:32,320 are represented in verses such as thus 39 00:01:30,079 --> 00:01:33,520 does allah make clear to you his verses 40 00:01:32,320 --> 00:01:37,040 that you might use 41 00:01:33,520 --> 00:01:39,280 reason in fact it is made clear that 42 00:01:37,040 --> 00:01:41,040 seeking knowledge is an integral part of 43 00:01:39,280 --> 00:01:43,520 being a practicing muslim 44 00:01:41,040 --> 00:01:45,759 as the quran states that whoever has 45 00:01:43,520 --> 00:01:47,280 been given wisdom has certainly been 46 00:01:45,759 --> 00:01:49,600 given much good 47 00:01:47,280 --> 00:01:52,399 and none will grasp the message except 48 00:01:49,600 --> 00:01:54,799 the people of understanding 49 00:01:52,399 --> 00:01:56,960 another verse states indeed in the 50 00:01:54,799 --> 00:01:59,040 creation of the heavens and the earth 51 00:01:56,960 --> 00:02:00,000 and the alteration of the night and the 52 00:01:59,040 --> 00:02:03,439 day are 53 00:02:00,000 --> 00:02:06,799 signs for those of understanding 54 00:02:03,439 --> 00:02:09,119 the arabic word for verse ayat refers to 55 00:02:06,799 --> 00:02:10,160 both the verses of the quran and verses 56 00:02:09,119 --> 00:02:12,080 in the universe 57 00:02:10,160 --> 00:02:13,599 and encourages practicing muslims to 58 00:02:12,080 --> 00:02:16,560 analyze both the quran 59 00:02:13,599 --> 00:02:17,920 and the world around them thus the 60 00:02:16,560 --> 00:02:20,400 teachings of islam 61 00:02:17,920 --> 00:02:22,319 encourage scientific exploration 62 00:02:20,400 --> 00:02:24,800 allowing for islamic scholarship to 63 00:02:22,319 --> 00:02:24,800 flourish 64 00:02:25,200 --> 00:02:29,360 in addition to the encouragement of 65 00:02:27,360 --> 00:02:31,599 seeking knowledge by the quran 66 00:02:29,360 --> 00:02:33,760 islam also presented new religious 67 00:02:31,599 --> 00:02:36,239 obligations which required precise 68 00:02:33,760 --> 00:02:38,879 mathematical calculations 69 00:02:36,239 --> 00:02:41,120 the second pillar of islam salah 70 00:02:38,879 --> 00:02:42,640 requires practicing muslims to pray five 71 00:02:41,120 --> 00:02:44,720 times a day 72 00:02:42,640 --> 00:02:46,239 these prayer times are determined by the 73 00:02:44,720 --> 00:02:48,319 position of the sun 74 00:02:46,239 --> 00:02:51,200 and thus changed by the location on 75 00:02:48,319 --> 00:02:53,519 earth and the seasons of the year 76 00:02:51,200 --> 00:02:55,120 therefore they need to be calculated for 77 00:02:53,519 --> 00:02:57,200 each day of the year and for every 78 00:02:55,120 --> 00:02:59,360 location on earth 79 00:02:57,200 --> 00:03:00,640 this new requirement led to the creation 80 00:02:59,360 --> 00:03:03,280 of 81 00:03:00,640 --> 00:03:04,159 or the signs of time keeping as well as 82 00:03:03,280 --> 00:03:06,400 muakits 83 00:03:04,159 --> 00:03:08,800 or timekeepers astronomers who 84 00:03:06,400 --> 00:03:10,640 specialized in calculating daily prayer 85 00:03:08,800 --> 00:03:12,800 times 86 00:03:10,640 --> 00:03:14,879 in addition to calculating prayer times 87 00:03:12,800 --> 00:03:16,879 according to the position of the sun 88 00:03:14,879 --> 00:03:19,280 practicing muslims must also know the 89 00:03:16,879 --> 00:03:21,519 direction of their prayer 90 00:03:19,280 --> 00:03:22,480 during prayer practicing muslims face 91 00:03:21,519 --> 00:03:26,080 the kaaba 92 00:03:22,480 --> 00:03:27,920 located in mecca and indicated by qibla 93 00:03:26,080 --> 00:03:29,920 calculating the direction of prayer 94 00:03:27,920 --> 00:03:31,519 requires complicated spherical 95 00:03:29,920 --> 00:03:34,159 trigonometry to solve 96 00:03:31,519 --> 00:03:38,080 as mathematicians such as abruni had to 97 00:03:34,159 --> 00:03:40,720 account for the curvature of the earth 98 00:03:38,080 --> 00:03:42,640 lastly islam also presented new 99 00:03:40,720 --> 00:03:43,440 complications regarding the division of 100 00:03:42,640 --> 00:03:46,159 money 101 00:03:43,440 --> 00:03:48,000 the third pillar of islam zakat refers 102 00:03:46,159 --> 00:03:48,959 to the community's share of private 103 00:03:48,000 --> 00:03:50,959 wealth 104 00:03:48,959 --> 00:03:53,120 it is paid on the accumulated wealth 105 00:03:50,959 --> 00:03:55,760 beyond basic necessities 106 00:03:53,120 --> 00:03:57,439 the rate of zakat changes between 2.5 107 00:03:55,760 --> 00:03:59,599 percent to 20 108 00:03:57,439 --> 00:04:01,599 depending on the type of the asset in 109 00:03:59,599 --> 00:04:04,239 addition to calculating zakat 110 00:04:01,599 --> 00:04:06,239 in al farahid or the science of 111 00:04:04,239 --> 00:04:08,080 obligations was developed to divide 112 00:04:06,239 --> 00:04:10,799 inheritance according to the islamic 113 00:04:08,080 --> 00:04:11,519 traditions in achawarismi's book on 114 00:04:10,799 --> 00:04:13,920 algebra 115 00:04:11,519 --> 00:04:14,720 he states that one of the purposes of 116 00:04:13,920 --> 00:04:16,880 his text 117 00:04:14,720 --> 00:04:18,239 was to help calculate zakat and 118 00:04:16,880 --> 00:04:20,799 inheritance 119 00:04:18,239 --> 00:04:23,759 in fact more than half of his book is 120 00:04:20,799 --> 00:04:25,840 devoted to inheritance problems 121 00:04:23,759 --> 00:04:27,680 the close relationship between religion 122 00:04:25,840 --> 00:04:29,199 and the pursuit of knowledge in medieval 123 00:04:27,680 --> 00:04:32,000 islamic society 124 00:04:29,199 --> 00:04:33,280 allowed for scholarship to flourish it 125 00:04:32,000 --> 00:04:35,520 also presented new 126 00:04:33,280 --> 00:04:36,880 challenges which previous civilizations 127 00:04:35,520 --> 00:04:39,440 had not faced 128 00:04:36,880 --> 00:04:40,880 such as the calculation of prayer times 129 00:04:39,440 --> 00:04:43,600 and the qibla problem 130 00:04:40,880 --> 00:04:45,520 to solve these problems islamic scholars 131 00:04:43,600 --> 00:04:48,000 invented new mathematics 132 00:04:45,520 --> 00:04:50,400 ultimately the golden age of islam is a 133 00:04:48,000 --> 00:04:52,320 prime example of religion and science 134 00:04:50,400 --> 00:04:53,360 being brought together to create new 135 00:04:52,320 --> 00:04:55,600 innovations 136 00:04:53,360 --> 00:04:57,520 which not only benefited contemporary 137 00:04:55,600 --> 00:05:10,800 medieval islamic society 138 00:04:57,520 --> 00:05:10,800 but would also change the world forever