Please answer a question about the following article about Multiracial American:

In the 1980s, parents of mixed-race children began to organize and lobby for the addition of a more inclusive term of racial designation that would reflect the heritage of their children. When the U.S. government proposed the addition of the category of "bi-racial" or "multiracial" in 1988, the response from the public was mostly negative. Some African-American organizations, and African-American political leaders, such as Congresswoman Diane Watson and Congressman Augustus Hawkins, were particularly vocal in their rejection of the category, as they feared the loss of political and economic power if African Americans reduced their numbers by self-identification.

When did multiracial people start to organize for more inclusive racial identifiers?
In the 1980s