Linking the information back together is the key to this system. In the relational model, some bit of information was used as a "key", uniquely defining a particular record. When information was being collected about a user, information stored in the optional tables would be found by searching for this key. For instance, if the login name of a user is unique, addresses and phone numbers for that user would be recorded with the login name as its key. This simple "re-linking" of related data back into a single collection is something that traditional computer languages are not designed for.
What technique is used to collect into one place?
re-linking

Patents have been criticized in the developing world, as they are thought to reduce access to existing medicines. Reconciling patents and universal access to medicine would require an efficient international policy of price discrimination. Moreover, under the TRIPS agreement of the World Trade Organization, countries must allow pharmaceutical products to be patented. In 2001, the WTO adopted the Doha Declaration, which indicates that the TRIPS agreement should be read with the goals of public health in mind, and allows some methods for circumventing pharmaceutical monopolies: via compulsory licensing or parallel imports, even before patent expiration.
When did the World Trade Organization adopt the Doha Declaration?
2001

Maharaja Ranjit Singh's death in the summer of 1839 brought political chaos and the subsequent battles of succession and the bloody infighting between the factions at court weakened the state. Relationships with neighbouring British territories then broke down, starting the First Anglo-Sikh War; this led to a British official being resident in Lahore and the annexation in 1849 of territory south of the Satluj to British India. After the Second Anglo-Sikh War in 1849, the Sikh Empire became the last territory to be merged into British India. In Jhelum 35 British soldiers of HM XXIV regiment were killed by the local resistance during the Indian Rebellion of 1857.[citation needed]
When was part of Punjab annexed into British India?
1849