1st » A value added tax is introduced in Greece for the first time.
4th » The 1987 Maryland train collision: An Amtrak train 'en route' to Boston named Boston, Massachusetts from Washington, D.C., collides with Conrail engines in Chase, Maryland, killing 16 people.
20th » Church of England envoy Terry Waite is kidnapped in Lebanon.
22nd » Pennsylvania politician R. Budd Dwyer shoots and kills himself during a televised press conference, leading to debates on boundaries in journalism.
22nd » Philippines or Philippine security forces Mendiola massacre named open fire on a crowd of 10,000–15,000 demonstrators at Malacañan Palace, Manila, killing 13.