A Chronology of his plays

The Room (1957) Old Times (1970)
The Birthday Party (1957) Monologue (1972)
The Dumb Waiter (1957) No Man's Land (1974)
A Slight Ache (1958) Betrayal (1978)
The Hothouse (1958) Family Voices (1980)
The Caretaker (1959) Other Places (1982)
A Night Out (1959) A Kind of Alaska (1982)
Night School (1960) Victoria Station (1982)
The Dwarfs (1960) One For The Road (1984)
The Collection (1961) Mountain Language (1988)
The Lover (1962) The New World Order (1991)
Tea Party (1964) Party Time (1991)
The Homecoming (1964) Moonlight (1993)
The Basement (1966) Ashes to Ashes (1996)
Landscape (1967) Celebration (1999)
Silence (1968) Remembrance of Things Past (2000)

From Harold Pinter.org