20:
34:
294:
80:
70:
65:
289:
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196:
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166:
153:
140:
127:
25:
39:
283:
268:
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217:
200:
183:
170:
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144:
131:
15:
19:
115:
This category has the following 10 subcategories, out of 10 total.
295:
Educational organizations established in the 20th century
45:
8:
7:
261:
244:
227:
210:
193:
117:
109:
14:
290:Zoos by century of establishment
32:
18:
1:
265:Zoos established in the 1990s
248:Zoos established in the 1980s
231:Zoos established in the 1970s
214:Zoos established in the 1960s
197:Zoos established in the 1950s
180:Zoos established in the 1940s
167:Zoos established in the 1930s
154:Zoos established in the 1920s
141:Zoos established in the 1910s
128:Zoos established in the 1900s
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159:
146:
133:
102:
97:
92:
87:
62:
57:
52:
42:
37:
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35:
28:
26:Education portal
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22:
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60:
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24:
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5:
308:
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40:History portal
29:
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112:Subcategories
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284:Categories
269:(10 C)
252:(10 C)
235:(10 C)
218:(10 C)
201:(10 C)
184:(15 P)
171:(48 P)
158:(43 P)
145:(21 P)
132:(22 P)
101:25th
96:24th
91:23rd
86:22nd
81:21st
76:20th
71:19th
66:18th
61:17th
56:16th
51:15th
286::
267:
250:
233:
216:
199:
182:
169:
156:
143:
130:
121:Z
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