Question: What does PPN stand for?
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As the name indicates, the PPN confederated in 1946 with a grouping of regional of pro-independence parties within French West Africa and French Equatorial Africa to form the "Rassemblement Démocratique Africain" (African Democratic Rally—RDA ).
Under the leadership of Hamani Diori, the PPN paired appeals to traditional society within what was then the Colony of Niger while its representatives worked with the French Communist Party in France, which was then the only force supporting independence for France's colonial possessions.
In 1946 the single pro-Independence party in Niger was the Nigerien Progressive Party (PPN), of which Hamani Diori and Djibo Bakary were the most prominent members, and which numbered only 5000 members.
Simultaneously, these colonial territories were allowed limited representation in the French National Assembly, with Niger allotted one seat in 1946 and a second in 1948.
PPN Party leader Hamani Diori filled the first, and a French educated Niamey lawyer, Djibo Bakary filled the second.
Bakary, a leftist, helped push the party—already perceived as anti-French—in a populist direction.
The PPN was allied to the pan-colony African Democratic Rally (RDA), which itself caucused with the French Communist Party in the National Assembly.
Some elements, such as RDA leader Félix Houphouët-Boigny, were uncomfortable with this connection.
Many in the PPN felt the same way, while many other, grouped around Bakary and the tiny Nigerien Trades Union movement, pulled to the left.
Earlier splits of the PPN, of conservative Djerma traditional leaders and a small Franco-Nigerien contingent in 1946, were added to 1948 in reaction to Bakary and his circle and to the continued association with the RDA.
Harou Kouka and Georges Condat split to form a group (""Parti Independent du Niger-Est" PINE") that quickly joined with previous dissidents to create the Union of Nigerien Independents and Sympathizers (UNIS).
This relatively conservative coalition benefited from French support, and gained control of the consultative institutions of the Niger colony from 1948-1952.
Diori, much like RDA chair Félix Houphouët-Boigny, broke from the PCF in 1951 and by 1958 was close to the colonial authorities in Niamey.
This faction retained both the PPN name and the connection with the RDA, while Djibo Bakary now broke from the RDA to retain ties with the French Communist Party.
Bakary's new party, SAWABA, prospered in the 1956 territorial assembly elections to the detriment of the PPN.
In 1958's constitutional referendum and assembly elections, the PPN supported continued association with France under the French Community, while its primary rival, called for immediate independence from France.
The PPN swept territorial elections making Diori chair of the Assembly (essentially, Prime Minister to the colonial governor's presidential role).
SAWABA was suppressed and outlawed prior to independence in 1960 with the help of French officials. 
Areas and note-worthy monuments of the Altstadt.Römerberg and its Surroundings.
Greek inscription - what does it stand for? 
PPN may refer to: Guillermo León Valencia Airport Pre-Pottery Neolithic Nigerien Progressive Party-African Democratic Rally, from the French acronym, "Parti Progressiste Nigérien" Pandit Pran Nath Parameterized post-Newtonian formalism Pingat Pangkuan Negara, a Malaysian honour Pedunculopontine nucleus Principal protected notes, an investment product Protoplanetary nebula Parameterized post-Newtonian formalism, a classification system for different theories of gravity  
  AN/PPN-1  AN/PPN-1A  AN/PPN-2 American.
The "Rebecca" code name was derived from the phrase "recognition of beacons". 
 Alliance of the Forces of Change (AFC): a nine (later six) party coalition from 1991-1996.
Ruling coalition from 1993-1994.
Union for the Franco-African Community (UCFA): PPN led pro-French Union coalition: 1958.
Coordination of Democratic Forces (CFD, "Coordination des forces démocratiques"): 11 party opposition coalition from 2004.
Led by PNDS.
Included PPN, PNA-Al'ouma, UNI, UDR-Tabbat.