ELD Policy Timeline By cody_stephanie Period: 1966 to 2017 ELD Policy Timeline 1968 1968 - Bilingual Education Act (Peregoy et al., 2017). 1974 1974 - Lau v. Nichols Case Decision (Wright, 2019) 1981 1981 - Castaneda v. Pickard (Cruze et al., 2019) 1998 1998 - Proposition 227 (LAO, 1998) 2001 2001 - No Child Left Behind Act 2015 2015 - Every Student Succeeds Act (Darrow, 2016)