What is the meaning of 'First in the world' here?

First in the world: Here, 'FIRST IN THE WORLD' is used in the sense of 'Who and what work was done for the first time in the world, or which thing happened first in the world, or is higher'.

Following are the list of 'Who and what is First in the world':

Sr.EventWho/what is that?
1.The first person to reach Mount EverestSherpa Tenzing, Edmund Hillary
2.The first person to reach North PoleeRobert Peary
3.The first person to reach South PoleAmundsen
4.The first religion of the worldHinduismn
5.The first country to print bookChina
6.The first country to issue paper currencyhina
7.The first country to commence competitive examination in civil servicesChina
8.The first President of the U.S.A.George Washington
9.The first Prime Minister of BritainRobert Walpole
10.The first Governor General of the United NationsTrigveli (Norway)
11.The first country to win football World cupUruguay
12.The first country to prepare a constitutionU.S.A
13.The first Governor General of PakistanMohd. Ali Jinnah
14.The first country to host NAM summitBelgrade (Yugoslavia)
15.The first European to attack IndiaAlexander, The Great
16.The first European to reach ChinaMarco Polo
17.The first person to fly aeroplaneWright Brothers
18.The first person to sail round the worldMagellan
19.The first country to send man to the moonU.S.A.
20.The first country to launch Artificial satellite in the spaceRussia
21.The first country to host the modern OlympicsGreece
22.The first city on which the atom bomb was droppedHiroshima (Japan)
23.The first person to land on the moonNeil Amstrong followed by Edwin E. Aldrin
24.The first shuttle to go in spaceColumbia
25.The first spacecraft to reach on MarsViking-
26.The first woman Prime Minister of EnglandMargaret Thatcher
27.The first muslim Prime Minister of a countryBenazir Bhutto (Pakistan)
28.The first woman Prime Minister of a countryMrs. S. Bandarnaike (Sri Lanka)
29.The first woman to climb Mount EverestMrs. Junko Tabei (Japan)
30.he first woman cosmonaut of the worldVelentina Tereshkova (Russia)
31.ne tirst woman President of the U.N. General AssemblyVijaya Lakshmi Pandit
32.The first man to fily into spaceYuri Gagarin (Russia)
33.The first batsman to score three test century in three successive tests on debutMohd. Azharuddin
34.The first man to have climbed Mount Everest twiceNawang Gombu
35.The first U.S. President to resign PresidencyRichard Nixon
First in the world