Short answers, pulled from the story.
The OECD Development Centre was established in 1961. This entity was created by the Organisation for Economic Co-operation and Development in Paris to allow developing economies to interact with wealthy industrialized nations on an equal footing.
El Salvador, Guatemala, Togo, Rwanda, and Ecuador joined the OECD Development Centre in 2019. These additions expanded the membership to include 25 OECD member countries and 29 non-OECD member countries as of the most recent data.
The Global Forum on Development is a high-level venue that brings together policy makers and civil society to exchange perspectives on poverty reduction and social cohesion. This forum attracts participation from governments, international organisations, civil society, foundations, think tanks, the media, corporations, and academia.
China joined the OECD Development Centre in July 2015. This membership brought the world's second-largest economy into the fold and marked a significant turning point in global economic integration.
Multi-dimensional Country Reviews are analytical tools that directly engage non-Members to help them implement nationally owned development strategies. These reviews provide national policy makers and their partners with the inputs needed to address key constraints across all dimensions of national development.